# To print Abbreviated weekday name:
date +"%a"
# To print Full month name:
date +"%B"
# To print ISO date (same as %Y-%m-%d):
date +"%F"
# To print Time (same as %H:%M:%S):
date +"%T"
# To print Sunday week number (00 to 53):
date +"%U"
# To print Monday week number (00 to 53):
date +"%W"
# To print Time (localized):
date +"%X"
# To print 4-digit year:
date +"%Y"
# To print Timezone name:
date +"%Z"
# To print the date in a format suitable for affixing to file names:
date +"%Y%m%d_%H%M%S"
# To convert a Unix timestamp to Date (Linux):
date -d @1440359821
# To convert a Unix timestamp to Date (OSX):
date -r 1440359821
# To show the current timezone:
date +%Z
# To show date in RFC format with TZ offset:
date -R
# To show date in UTC/GMT:
date -u
# To show date in CET:
TZ=CET date
# To show the time on the west coast of the US (use tzselect(1) to find TZ):
TZ='America/Los_Angeles' date
# To show yesterday's date
date -d "yesterday 13:00" '+%Y-%m-%d'
