"Sun, 14 Jul 2024 08:37:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240714
Only TIME
08:37:15
General datetime
2024-07-14 08:37:15Z
For Database
2024-07-14 08:37:15
For HTTP1.1
Sun, 14 Jul 2024 08:37:15 GMT