"Sat, 11 May 2024 16:09:12"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240511
Only TIME
16:09:12
General datetime
2024-05-11 16:09:12Z
For Database
2024-05-11 16:09:12
For HTTP1.1
Sat, 11 May 2024 16:09:12 GMT