"Sun, 12 May 2024 14:13:14"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240512
Only TIME
14:13:14
General datetime
2024-05-12 14:13:14Z
For Database
2024-05-12 14:13:14
For HTTP1.1
Sun, 12 May 2024 14:13:14 GMT