# Output: stdout: integer seconds until next day
# Output: exit code 0 if stdout > 0; 1 if stdout = 0; 2 if stdout < 0
# Usage: timeUntilNextDay
# Usage: if ! myTTL="$(timeUntilNextDay)"; then yell "ERROR in if statement"; exit 1; fi
# Depends: date 8, echo 8, yell, try
# Output: stdout: integer seconds until next day
# Output: exit code 0 if stdout > 0; 1 if stdout = 0; 2 if stdout < 0
# Usage: timeUntilNextDay
# Usage: if ! myTTL="$(timeUntilNextDay)"; then yell "ERROR in if statement"; exit 1; fi
# Depends: date 8, echo 8, yell, try