"Sat, 11 May 2024 11:21:14"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240511
Only TIME
11:21:14
General datetime
2024-05-11 11:21:14Z
For Database
2024-05-11 11:21:14
For HTTP1.1
Sat, 11 May 2024 11:21:14 GMT