"Mon, 27 May 2024 14:38:05"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240527
Only TIME
14:38:05
General datetime
2024-05-27 14:38:05Z
For Database
2024-05-27 14:38:05
For HTTP1.1
Mon, 27 May 2024 14:38:05 GMT