"Sun, 21 Jul 2024 06:01:01"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240721
Only TIME
06:01:01
General datetime
2024-07-21 06:01:01Z
For Database
2024-07-21 06:01:01
For HTTP1.1
Sun, 21 Jul 2024 06:01:01 GMT