try() { "$@" || die "cannot $*"; }
timeUntilNextDay(){
# Desc: Report seconds until next day.
- # Version: 1.0.1
+ # Version: 1.0.3
# Output: stdout: integer seconds until next day
# Output: exit code 0 if stdout > 0; 1 if stdout = 0; 2 if stdout < 0
# Usage: timeUntilNextDay
# Depends: date 8, echo 8, yell, try
local returnState timeCurrent timeNextDay secondsUntilNextDay
-
timeCurrent="$(date --iso-8601=seconds)" ; # Produce `date`-parsable current timestamp with resolution of 1 second.
timeNextDay="$(date -d "$timeCurrent next day" --iso-8601=date)"; # Produce timestamp of beginning of tomorrow with resolution of 1 second.
secondsUntilNextDay="$(( $(date +%s -d "$timeNextDay") - $(date +%s -d "$timeCurrent") ))" ; # Calculate seconds until closest future midnight (res. 1 second).