"Tue, 21 May 2024 12:36:03"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240521
Only TIME
12:36:03
General datetime
2024-05-21 12:36:03Z
For Database
2024-05-21 12:36:03
For HTTP1.1
Tue, 21 May 2024 12:36:03 GMT