"Sun, 21 Jul 2024 02:34:51"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240721
Only TIME
02:34:51
General datetime
2024-07-21 02:34:51Z
For Database
2024-07-21 02:34:51
For HTTP1.1
Sun, 21 Jul 2024 02:34:51 GMT