"Sun, 21 Jul 2024 05:50:16"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240721
Only TIME
05:50:16
General datetime
2024-07-21 05:50:16Z
For Database
2024-07-21 05:50:16
For HTTP1.1
Sun, 21 Jul 2024 05:50:16 GMT