"Tue, 21 May 2024 07:40:51"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240521
Only TIME
07:40:51
General datetime
2024-05-21 07:40:51Z
For Database
2024-05-21 07:40:51
For HTTP1.1
Tue, 21 May 2024 07:40:51 GMT