"Sun, 16 Jun 2024 08:37:12"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240616
Only TIME
08:37:12
General datetime
2024-06-16 08:37:12Z
For Database
2024-06-16 08:37:12
For HTTP1.1
Sun, 16 Jun 2024 08:37:12 GMT