"Sun, 12 May 2024 12:36:03"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240512
Only TIME
12:36:03
General datetime
2024-05-12 12:36:03Z
For Database
2024-05-12 12:36:03
For HTTP1.1
Sun, 12 May 2024 12:36:03 GMT