[BK-2020-03.git] / user / bkdatev

#!/usr/bin/env bash
# Desc: Baltakatei's verbose date command
# Usage: bkdatev [args]
# Example: bkdatev --date="2001-09-11T09:02:59-04"
# Version: 0.3.0
# Ref/Attrib: [1] "ISO 8601". Wikipedia. https://en.wikipedia.org/wiki/ISO_8601
#             [2] "Changing the Locale in Wine" https://stackoverflow.com/a/16428951
#             [3] "Shanghai vs Beijing" https://bugs.launchpad.net/ubuntu/+source/libgweather/+bug/228554
# Notes:  * Check `ls -R /usr/share/zoneinfo` for time zone names.
#         * Check `cat /usr/share/i18n/SUPPORTED` for supported locales.
#         * For list of valid locales, see: https://manpages.ubuntu.com/manpages/bionic/man3/DateTime::Locale::Catalog.3pm.html
#         * Locations chosen for population, personal signifiance, and spatial coverage.
#         * For International Atomic Time (TAI), use offsets from UTC provided in `/usr/share/zoneinfo/leap-seconds.list`.

yell() { echo "$0: $*" >&2; }
die() { yell "$*"; exit 111; }
must() { "$@" || die "cannot $*"; }
insertStr() {
    # Desc: Inserts a string into another string at a specified position.
    # Input: arg1: str   str_rec  String to receive insertion
    #        arg2: int   pos      Insertion position (0 = append to front)
    #        arg3: str   str_ins  String to be inserted
    # Output: stdout:    Combined string
    # Version: 0.0.2
    # Depends: BK-2020-03: yell(), die(), must()
    # Ref/Attrib: * BK-2020-03: https://gitlab.com/baltakatei/baltakatei-exdev/
    #             * Cooper, Mendel. “Advanced Bash-Scripting Guide: Manipulating Strings”. tldp.org https://tldp.org/LDP/abs/html/string-manipulation.html

    local str_rec pos str_ins re len_str_rec;
    local pfx_pos_start pfx_len pfx;
    local sfx_pos_start sfx_len sfx;

    # Check args
    if [[ $# -ne 3 ]]; then
        yell "ERROR:Invalid argument count:$#";
        return 1; fi;
    re='^[0-9]+$';
    if [[ ! "$2" =~ $re ]]; then
        yell "ERROR:Not an int:$2";
        return 1; fi;
    str_rec="$1";
    pos="$2";
    str_ins="$3";

    # Calculate string stats
    len_str_rec="${#str_rec}";

    # Form prefix
    pfx_pos_start="0";
    pfx_len="$pos";
    pfx="${str_rec:$pfx_pos_start:$pfx_len}";

    # Form suffix
    sfx_pos_start="$(( pos ))";
    sfx_len="$(( len_str_rec - pos ))";
    sfx="${str_rec:$sfx_pos_start:$sfx_len}";

    # Print output to stdout
    printf "%s%s%s\n" "$pfx" "$str_ins" "$sfx";
}; # Insert string provided at indicated position via stdout
line_sep() {
    # Input: var: n_ln
    local skip_every=4;
    ((n_ln++));
    if ! ((n_ln % "$skip_every")); then
        printf "\n";
    fi;
    return 0;
}; # periodically print separating blank line
get_tz_offset() {
    # Desc: Get from 'date' the timezone UTC offset in a way
    #   compatible with both GNU Coreutils and BSD versions.
    # Input: env var: TZ  (time zone for date; e.g. 'America/Denver')
    # Depends: date (GNU Coreutils 8.32 or BSD), rev
    local ntz ntz ntz_out;
    local last2;

    # Get numeric time zone string in way compatible with GNU Coreutils and BSD
    ntz="$(date "+%z")"; # e.g. "+0530"

    # Check if last two characters are trailing zeros that can be removed.
    last2="${ntz:3:2}"; # assumes $ntz is 5 characters (i.e. "±HHMM")
    #last2="$(rev <<< $ntz)" && last2="${last2:0:2}" && last2="$(rev <<< "$last2")";
    if [[ "$last2" == "00" ]]; then
        ## ntz_out is truncated by 2 characters
        ntz_out="${ntz:0:-2}";
    else
        ## ntz_out is ntz with semicolon inserted after HH
        ntz_out="$(insertStr "$ntz" 3 ":" )";
    fi;
    
    # Output via stdout
    printf "%s" "$ntz_out";
}; # Format numeric time zone (for BSD date compatibility)
print_dateline() {
    # Input: var: $id
    #        var: $fs_1
    #        var: $fs_2
    #        var: $fs_3
    #        args: $@
    #        env var: TZ (time zone for date; e.g. 'America/Denver')
    # Output: stdout
    # Depends: printf, date
    #          get_tz_offset()
    # Ref/Attrib: * Truncate string in printf https://stackoverflow.com/a/46812677
    local s_1 s_2 s_2_tz s_3 s_4;

    s_1="$id";
    s_2="$(date "$@" "$fs_1")"; # ISO-8601 without numeric timezone
    s_3="$(date "$@" "$fs_2")"; # Alternate ISO-8601 expressions
    s_4="$(date "$@" "$fs_3")"; # locale-specific date strings

    # Append numeric timezone to $s_2 with appropriate format
    #   (e.g. '-07' for 'Arizona', '+05:45' for 'Asia/Kathmandu')
    s_2_tz="$(get_tz_offset)";
    s_2="$( printf "%s%s" "$s_2" "$s_2_tz" )";

    printf "%-10.10s %-25.25s (%-20.20s) (%s)" "$s_1" "$s_2" "$s_3" "$s_4";
    printf "\n";

    unset fs_1 fs_2 fs_3 fs_4;
    }; # print line of dates
main() {
    n_ln=0; # for line_sep()
    unset LC_TIME; # Fall back to time zone-specific locale settings.
    
    # format strings
    fs_iso8601="+%Y-%m-%dT%H:%M:%S"; # typical ISO-8601 without timezone
    fs_iso8601_etc="+%G-W%V-%u, %Y-%j"; # alternate ISO-8601 dates
    fs_locale="+%Z; %A; %c"; # locale-specific date strings

    # vars for print_dateline()
    fs_1="$fs_iso8601";
    fs_2="$fs_iso8601_etc";
    fs_3="$fs_locale";

    # UTC (pop. (2021): 7,837,000,000)
    (
        export TZ=UTC;
        id="UTC";
        fs_3="+%s seconds since 1970-01-01T00:00+00";
        print_dateline "$@";
    ); line_sep;

    # Hawaii
    (
        export TZ=US/Hawaii;
        export LANG="haw-US.UTF8";
        id="HAWAII";
        print_dateline "$@";
    ); line_sep;

    # Los Angeles, USA
    (
        export TZ=America/Los_Angeles;
        export LANG="en_US.UTF-8";
        id="LOS ANGELES";
        print_dateline "$@";
    ); line_sep;

    # Denver, USA (pop. (2021): 711,463)
    (
        export TZ=America/Denver;
        export LANG="en_US.UTF-8";
        id="DENVER";
        print_dateline "$@";
    ); line_sep;

    # Chicago, USA (pop. (2021): 711,463)
    (
        export TZ=America/Chicago;
        export LANG="en_US.UTF-8";
        id="CHICAGO";
        print_dateline "$@";
    ); line_sep;

    # Mexico City, Mexico (pop. (2018): 21,804,515)
    (
        export TZ=America/Mexico_City;
        export LANG="es_MX.UTF8";
        id="MEXICO CITY";
        print_dateline "$@";
    ); line_sep;

    # Panama City, Panama
    (
        export TZ=America/Panama;
        export LANG="es_PA.UTF8";
        id="PANAMA CITY";
        print_dateline "$@";
    ); line_sep;

    # New York, USA (pop. (2018): 20,140,470)
    (
        export TZ=America/New_York;
        export LANG="en_US.UTF-8";
        id="NEW YORK";
        print_dateline "$@";
    ); line_sep;

    # São Paulo, Brazil
    (
        export TZ=America/Sao_Paulo;
        export LANG="pt_BR.UTF8";
        id="SAO PAULO";
        print_dateline "$@";
    ); line_sep;

    # Buenos Aires
    (
        export TZ=America/Argentina/Buenos_Aires;
        export LANG="es_AR.UTF8";
        id="BUENOS AIRES";
        print_dateline "$@";
    ); line_sep;

    # London, England
    (
        export TZ=Europe/London;
        export LANG="en_GB.UTF-8";
        id="LONDON";
        print_dateline "$@";
    ); line_sep;

    # Kinshasa, Africa
    (
        export TZ=Africa/Kinshasa;
        export LANG="ln_CD.UTF8";
        id="KINSHASA";
        print_dateline "$@";
    ); line_sep;

    # Lagos, Africa
    (
        export TZ=Africa/Lagos;
        export LANG="en_NG.UTF8";
        id="LAGOS";
        print_dateline "$@";
    ); line_sep;

    # Paris, France
    (
        export TZ=Europe/Paris;
        export LANG="fr_FR.UTF8";
        id="PARIS";
        print_dateline "$@";
    ); line_sep;

    # Stockholm, Sweden
    (
        export TZ=Europe/Stockholm;
        export LANG="sv_SE.UTF8";
        id="STOCKHOLM";
        print_dateline "$@";
    ); line_sep;

    # Cairo, Egypt
    (
        export TZ=Africa/Cairo;
        export LANG="ar_EG.UTF8";
        id="CAIRO";
        print_dateline "$@";
    ); line_sep;

    # Athens (pop. (2020): 3,526,887)
    (
        export TZ=Europe/Athens;
        export LANG="el_GR.UTF8";
        id="ATHENS";
        print_dateline "$@";
    ); line_sep;

    # Istanbul (pop. (2020): 13,719,061)
    (
        export TZ=Asia/Istanbul;
        export LANG="tr_TR.UTF8";
        id="ISTANBUL";
        print_dateline "$@";
    ); line_sep;

    # Tehran, Iran
    (
        export TZ=Asia/Tehran;
        export LANG="fa_IR.UTF8";
        id="TEHRAN";
        print_dateline "$@";
    ); line_sep;

    # Moscow, Russia
    (
        export TZ=Europe/Moscow;
        export LANG="ru_RU.UTF-8";
        id="MOSCOW";
        print_dateline "$@";
    ); line_sep;

    # Kyiv, Ukraine (pop. (2021): 2,962,180)
    (
        export TZ=Europe/Kyiv;
        export LANG="uk_UA.UTF-8";
        id="KYIV";
        print_dateline "$@";
    ); line_sep;

    # Delhi, India (pop. (2018): 29,000,000)
    (
        export TZ=Asia/Kolkata;
        export LANG="hi_IN.UTF-8";
        id="DELHI";
        print_dateline "$@";
    ); line_sep;

    # Jakarta, Indonesia (pop. (2018): 33,430,285)
    (
        export TZ=Asia/Jakarta;
        export LANG="id_ID.UTF8";
        id="JAKARTA";
        print_dateline "$@";
    ); line_sep;

    # Singapore, Singapore (pop (2018): 5,792,000)
    (
        export TZ=Asia/Singapore;
        export LANG="en_SG.UTF-8";
        id="SINGAPORE";
        print_dateline "$@";
    ); line_sep;

    # Beijing, China (pop. (2018): 19,618,000)
    (
        export TZ=Asia/Shanghai; # [3]
        export LANG="zh_CN.UTF-8";
        id="BEIJING";
        print_dateline "$@";
    ); line_sep;

    # Taipei, Taiwan (pop (2019): 7,034,084)
    (
        export TZ=Asia/Taipei; # [3]
        export LANG="zh_TW.UTF-8";
        id="TAIPEI";
        print_dateline "$@";
    ); line_sep;    
    
    # Tokyo, Japan (pop. (2018): 37,274,000)
    (
        export TZ=Asia/Tokyo;
        export LANG="ja_JP.UTF8";
        id="TOKYO";
        print_dateline "$@";
    ); line_sep;

    # Seoul, South Korea (pop. (2018): 25,514,000)
    (
        export TZ=Asia/Seoul;
        export LANG="ko_KR.UTF8";
        id="SEOUL";
        print_dateline "$@";
    ); line_sep;

    # Pyongyang, North Korea
    (
        export TZ=Asia/Pyongyang;
        export LANG="ko_KP.UTF8";
        id="PYONGYANG";
        print_dateline "$@";
    ); line_sep;
    
    # Sydney, Australia
    (
        export TZ=Australia/Sydney;
        export LANG="en_AU.UTF8";
        id="SYDNEY";
        print_dateline "$@";
    ); line_sep;

    # Guam
    (
        export TZ=Pacific/Guam;
        export LANG="en_GU.UTF8";
        id="GUAM";
        print_dateline "$@";
    ); line_sep;

    # Auckland, New Zealand
    (
        export TZ=Pacific/Auckland;
        export LANG="en_NZ.UTF8";
        id="AUCKLAND";
        print_dateline "$@";
    ); line_sep;
    
    return 0;
}; # main program

main "$@";

# Author: Steven Baltakatei Sandoval
# License: GPLv3+
Commit	Line	Data
4143a6ea SBS	1	#!/usr/bin/env bash
	2	# Desc: Baltakatei's verbose date command
	3	# Usage: bkdatev [args]
	4	# Example: bkdatev --date="2001-09-11T09:02:59-04"
b29fc43b	5	# Version: 0.3.0
4143a6ea SBS	6	# Ref/Attrib: [1] "ISO 8601". Wikipedia. https://en.wikipedia.org/wiki/ISO_8601
	7	# [2] "Changing the Locale in Wine" https://stackoverflow.com/a/16428951
	8	# [3] "Shanghai vs Beijing" https://bugs.launchpad.net/ubuntu/+source/libgweather/+bug/228554
	9	# Notes: * Check `ls -R /usr/share/zoneinfo` for time zone names.
	10	# * Check `cat /usr/share/i18n/SUPPORTED` for supported locales.
	11	# * For list of valid locales, see: https://manpages.ubuntu.com/manpages/bionic/man3/DateTime::Locale::Catalog.3pm.html
	12	# * Locations chosen for population, personal signifiance, and spatial coverage.
514ae735	13	# * For International Atomic Time (TAI), use offsets from UTC provided in `/usr/share/zoneinfo/leap-seconds.list`.
4143a6ea	14
b29fc43b SBS	15	yell() { echo "$0: $*" >&2; }
	16	die() { yell "$*"; exit 111; }
	17	must() { "$@" \|\| die "cannot $*"; }
	18	insertStr() {
	19	# Desc: Inserts a string into another string at a specified position.
	20	# Input: arg1: str str_rec String to receive insertion
	21	# arg2: int pos Insertion position (0 = append to front)
	22	# arg3: str str_ins String to be inserted
	23	# Output: stdout: Combined string
	24	# Version: 0.0.2
	25	# Depends: BK-2020-03: yell(), die(), must()
	26	# Ref/Attrib: * BK-2020-03: https://gitlab.com/baltakatei/baltakatei-exdev/
	27	# * Cooper, Mendel. “Advanced Bash-Scripting Guide: Manipulating Strings”. tldp.org https://tldp.org/LDP/abs/html/string-manipulation.html
	28
	29	local str_rec pos str_ins re len_str_rec;
	30	local pfx_pos_start pfx_len pfx;
	31	local sfx_pos_start sfx_len sfx;
	32
	33	# Check args
	34	if [[ $# -ne 3 ]]; then
	35	yell "ERROR:Invalid argument count:$#";
	36	return 1; fi;
	37	re='^[0-9]+$';
	38	if [[ ! "$2" =~ $re ]]; then
	39	yell "ERROR:Not an int:$2";
	40	return 1; fi;
	41	str_rec="$1";
	42	pos="$2";
	43	str_ins="$3";
	44
	45	# Calculate string stats
	46	len_str_rec="${#str_rec}";
	47
	48	# Form prefix
	49	pfx_pos_start="0";
	50	pfx_len="$pos";
	51	pfx="${str_rec:$pfx_pos_start:$pfx_len}";
	52
	53	# Form suffix
	54	sfx_pos_start="$(( pos ))";
	55	sfx_len="$(( len_str_rec - pos ))";
	56	sfx="${str_rec:$sfx_pos_start:$sfx_len}";
	57
	58	# Print output to stdout
	59	printf "%s%s%s\n" "$pfx" "$str_ins" "$sfx";
	60	}; # Insert string provided at indicated position via stdout
4143a6ea SBS	61	line_sep() {
	62	# Input: var: n_ln
	63	local skip_every=4;
	64	((n_ln++));
	65	if ! ((n_ln % "$skip_every")); then
	66	printf "\n";
	67	fi;
	68	return 0;
	69	}; # periodically print separating blank line
b29fc43b SBS	70	get_tz_offset() {
	71	# Desc: Get from 'date' the timezone UTC offset in a way
	72	# compatible with both GNU Coreutils and BSD versions.
	73	# Input: env var: TZ (time zone for date; e.g. 'America/Denver')
	74	# Depends: date (GNU Coreutils 8.32 or BSD), rev
	75	local ntz ntz ntz_out;
	76	local last2;
	77
	78	# Get numeric time zone string in way compatible with GNU Coreutils and BSD
	79	ntz="$(date "+%z")"; # e.g. "+0530"
	80
	81	# Check if last two characters are trailing zeros that can be removed.
	82	last2="${ntz:3:2}"; # assumes $ntz is 5 characters (i.e. "±HHMM")
	83	#last2="$(rev <<< $ntz)" && last2="${last2:0:2}" && last2="$(rev <<< "$last2")";
	84	if [[ "$last2" == "00" ]]; then
	85	## ntz_out is truncated by 2 characters
	86	ntz_out="${ntz:0:-2}";
	87	else
	88	## ntz_out is ntz with semicolon inserted after HH
	89	ntz_out="$(insertStr "$ntz" 3 ":" )";
	90	fi;
	91
	92	# Output via stdout
	93	printf "%s" "$ntz_out";
	94	}; # Format numeric time zone (for BSD date compatibility)
4143a6ea SBS	95	print_dateline() {
	96	# Input: var: $id
	97	# var: $fs_1
	98	# var: $fs_2
	99	# var: $fs_3
	100	# args: $@
b29fc43b	101	# env var: TZ (time zone for date; e.g. 'America/Denver')
4143a6ea SBS	102	# Output: stdout
4143a6ea SBS	103	# Depends: printf, date
b29fc43b	104	# get_tz_offset()
4143a6ea	105	# Ref/Attrib: * Truncate string in printf https://stackoverflow.com/a/46812677
b29fc43b	106	local s_1 s_2 s_2_tz s_3 s_4;
4143a6ea SBS	107
4143a6ea SBS	108	s_1="$id";
b29fc43b SBS	109	s_2="$(date "$@" "$fs_1")"; # ISO-8601 without numeric timezone
	110	s_3="$(date "$@" "$fs_2")"; # Alternate ISO-8601 expressions
	111	s_4="$(date "$@" "$fs_3")"; # locale-specific date strings
	112
	113	# Append numeric timezone to $s_2 with appropriate format
	114	# (e.g. '-07' for 'Arizona', '+05:45' for 'Asia/Kathmandu')
	115	s_2_tz="$(get_tz_offset)";
	116	s_2="$( printf "%s%s" "$s_2" "$s_2_tz" )";
4143a6ea SBS	117
	118	printf "%-10.10s %-25.25s (%-20.20s) (%s)" "$s_1" "$s_2" "$s_3" "$s_4";
	119	printf "\n";
	120
	121	unset fs_1 fs_2 fs_3 fs_4;
	122	}; # print line of dates
	123	main() {
	124	n_ln=0; # for line_sep()
06ff9ce1	125	unset LC_TIME; # Fall back to time zone-specific locale settings.
4143a6ea SBS	126
4143a6ea SBS	127	# format strings
b29fc43b	128	fs_iso8601="+%Y-%m-%dT%H:%M:%S"; # typical ISO-8601 without timezone
4143a6ea SBS	129	fs_iso8601_etc="+%G-W%V-%u, %Y-%j"; # alternate ISO-8601 dates
	130	fs_locale="+%Z; %A; %c"; # locale-specific date strings
	131
	132	# vars for print_dateline()
	133	fs_1="$fs_iso8601";
	134	fs_2="$fs_iso8601_etc";
	135	fs_3="$fs_locale";
	136
	137	# UTC (pop. (2021): 7,837,000,000)
	138	(
	139	export TZ=UTC;
	140	id="UTC";
e202e295	141	fs_3="+%s seconds since 1970-01-01T00:00+00";
4143a6ea SBS	142	print_dateline "$@";
	143	); line_sep;
	144
	145	# Hawaii
	146	(
	147	export TZ=US/Hawaii;
	148	export LANG="haw-US.UTF8";
	149	id="HAWAII";
	150	print_dateline "$@";
	151	); line_sep;
	152
	153	# Los Angeles, USA
	154	(
	155	export TZ=America/Los_Angeles;
	156	export LANG="en_US.UTF-8";
	157	id="LOS ANGELES";
	158	print_dateline "$@";
	159	); line_sep;
	160
	161	# Denver, USA (pop. (2021): 711,463)
	162	(
	163	export TZ=America/Denver;
	164	export LANG="en_US.UTF-8";
	165	id="DENVER";
	166	print_dateline "$@";
	167	); line_sep;
	168
	169	# Chicago, USA (pop. (2021): 711,463)
	170	(
	171	export TZ=America/Chicago;
	172	export LANG="en_US.UTF-8";
	173	id="CHICAGO";
	174	print_dateline "$@";
	175	); line_sep;
	176
	177	# Mexico City, Mexico (pop. (2018): 21,804,515)
	178	(
	179	export TZ=America/Mexico_City;
	180	export LANG="es_MX.UTF8";
	181	id="MEXICO CITY";
	182	print_dateline "$@";
	183	); line_sep;
	184
	185	# Panama City, Panama
	186	(
	187	export TZ=America/Panama;
	188	export LANG="es_PA.UTF8";
	189	id="PANAMA CITY";
	190	print_dateline "$@";
	191	); line_sep;
	192
	193	# New York, USA (pop. (2018): 20,140,470)
	194	(
	195	export TZ=America/New_York;
	196	export LANG="en_US.UTF-8";
	197	id="NEW YORK";
	198	print_dateline "$@";
	199	); line_sep;
	200
	201	# São Paulo, Brazil
	202	(
	203	export TZ=America/Sao_Paulo;
	204	export LANG="pt_BR.UTF8";
	205	id="SAO PAULO";
206	print_dateline "$@";
207	); line_sep;
208
209	# Buenos Aires
210	(
211	export TZ=America/Argentina/Buenos_Aires;
212	export LANG="es_AR.UTF8";
213	id="BUENOS AIRES";
214	print_dateline "$@";
215	); line_sep;
216
217	# London, England
218	(
219	export TZ=Europe/London;
220	export LANG="en_GB.UTF-8";
221	id="LONDON";
222	print_dateline "$@";
223	); line_sep;
224
225	# Kinshasa, Africa
226	(
227	export TZ=Africa/Kinshasa;
228	export LANG="ln_CD.UTF8";
229	id="KINSHASA";
230	print_dateline "$@";
231	); line_sep;
232
233	# Lagos, Africa
234	(
235	export TZ=Africa/Lagos;
236	export LANG="en_NG.UTF8";
237	id="LAGOS";
238	print_dateline "$@";
239	); line_sep;
240
241	# Paris, France
242	(
243	export TZ=Europe/Paris;
244	export LANG="fr_FR.UTF8";
245	id="PARIS";
246	print_dateline "$@";
247	); line_sep;
248
249	# Stockholm, Sweden
250	(
251	export TZ=Europe/Stockholm;
252	export LANG="sv_SE.UTF8";
253	id="STOCKHOLM";
254	print_dateline "$@";
255	); line_sep;
256
257	# Cairo, Egypt
258	(
259	export TZ=Africa/Cairo;
260	export LANG="ar_EG.UTF8";
261	id="CAIRO";
262	print_dateline "$@";
263	); line_sep;
264
265	# Athens (pop. (2020): 3,526,887)
266	(
267	export TZ=Europe/Athens;
268	export LANG="el_GR.UTF8";
269	id="ATHENS";
270	print_dateline "$@";
271	); line_sep;
272
273	# Istanbul (pop. (2020): 13,719,061)
274	(
275	export TZ=Asia/Istanbul;
276	export LANG="tr_TR.UTF8";
277	id="ISTANBUL";
278	print_dateline "$@";
279	); line_sep;
280
281	# Tehran, Iran
282	(
283	export TZ=Asia/Tehran;
284	export LANG="fa_IR.UTF8";
285	id="TEHRAN";
286	print_dateline "$@";
287	); line_sep;
288
289	# Moscow, Russia
290	(
291	export TZ=Europe/Moscow;
292	export LANG="ru_RU.UTF-8";
293	id="MOSCOW";
294	print_dateline "$@";
295	); line_sep;
296
297	# Kyiv, Ukraine (pop. (2021): 2,962,180)
298	(
299	export TZ=Europe/Kyiv;
300	export LANG="uk_UA.UTF-8";
301	id="KYIV";
302	print_dateline "$@";
303	); line_sep;
304
305	# Delhi, India (pop. (2018): 29,000,000)
306	(
307	export TZ=Asia/Kolkata;
308	export LANG="hi_IN.UTF-8";
309	id="DELHI";
310	print_dateline "$@";
311	); line_sep;
312
313	# Jakarta, Indonesia (pop. (2018): 33,430,285)
314	(
315	export TZ=Asia/Jakarta;
316	export LANG="id_ID.UTF8";
317	id="JAKARTA";
318	print_dateline "$@";
319	); line_sep;
320
321	# Singapore, Singapore (pop (2018): 5,792,000)
322	(
323	export TZ=Asia/Singapore;
324	export LANG="en_SG.UTF-8";
325	id="SINGAPORE";
326	print_dateline "$@";
327	); line_sep;
328
329	# Beijing, China (pop. (2018): 19,618,000)
330	(
331	export TZ=Asia/Shanghai; # [3]
332	export LANG="zh_CN.UTF-8";
333	id="BEIJING";
334	print_dateline "$@";
335	); line_sep;
336
20857531 SBS	337	# Taipei, Taiwan (pop (2019): 7,034,084)
	338	(
	339	export TZ=Asia/Taipei; # [3]
	340	export LANG="zh_TW.UTF-8";
	341	id="TAIPEI";
	342	print_dateline "$@";
	343	); line_sep;
	344
4143a6ea SBS	345	# Tokyo, Japan (pop. (2018): 37,274,000)
	346	(
	347	export TZ=Asia/Tokyo;
	348	export LANG="ja_JP.UTF8";
	349	id="TOKYO";
	350	print_dateline "$@";
	351	); line_sep;
	352
	353	# Seoul, South Korea (pop. (2018): 25,514,000)
	354	(
	355	export TZ=Asia/Seoul;
	356	export LANG="ko_KR.UTF8";
	357	id="SEOUL";
	358	print_dateline "$@";
	359	); line_sep;
	360
20857531 SBS	361	# Pyongyang, North Korea
	362	(
	363	export TZ=Asia/Pyongyang;
	364	export LANG="ko_KP.UTF8";
	365	id="PYONGYANG";
	366	print_dateline "$@";
	367	); line_sep;
	368
4143a6ea SBS	369	# Sydney, Australia
	370	(
	371	export TZ=Australia/Sydney;
	372	export LANG="en_AU.UTF8";
	373	id="SYDNEY";
	374	print_dateline "$@";
	375	); line_sep;
	376
	377	# Guam
	378	(
	379	export TZ=Pacific/Guam;
	380	export LANG="en_GU.UTF8";
	381	id="GUAM";
	382	print_dateline "$@";
	383	); line_sep;
	384
	385	# Auckland, New Zealand
	386	(
	387	export TZ=Pacific/Auckland;
	388	export LANG="en_NZ.UTF8";
	389	id="AUCKLAND";
	390	print_dateline "$@";
	391	); line_sep;
	392
	393	return 0;
	394	}; # main program
	395
	396	main "$@";
b29fc43b SBS	397
	398	# Author: Steven Baltakatei Sandoval
	399	# License: GPLv3+