"Sun, 21 Jul 2024 06:16:14"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240721
Only TIME
06:16:14
General datetime
2024-07-21 06:16:14Z
For Database
2024-07-21 06:16:14
For HTTP1.1
Sun, 21 Jul 2024 06:16:14 GMT