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stevenharradine/bash date formats.md

Last active May 8, 2025 04:50
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bash date formats.md
Format/result Command Output
YYYY-MM-DD_hh:mm:ss date +%F_%T 2017-10-16_21:47:43
YYYYMMDD_hhmmss date +%Y%m%d_%H%M%S 20171016_214743
YYYYMMDD_hhmmss (UTC version) date --utc +%Y%m%d_%H%M%SZ 20171016_124743Z
YYYYMMDD_hhmmss (with local TZ) date +%Y%m%d_%H%M%S%Z 20171016_214743JST
YYYYMMSShhmmss date +%Y%m%d%H%M%S 20171016214743
YYYYMMSShhmmssnnnnnnnnn date +%Y%m%d%H%M%S%N 20171016214743670195402
YYMMDD_hhmmss date +%y%m%d_%H%M%S 171016_214743
Seconds since UNIX epoch: date +%s 1508158063
Nanoseconds only: date +%N 675403545
Nanoseconds since UNIX epoch: date +%s%N 1508158063676996287
ISO8601 UTC timestamp date --utc +%FT%TZ 2017-10-16T12:47:43Z
ISO8601 UTC timestamp + ms date --utc +%FT%T.%3NZ 2017-10-16T12:47:43.679Z
ISO8601 Local TZ timestamp date +%FT%T%Z 2017-10-16T21:47:43JST
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