"Sun, 21 Jul 2024 12:56:09"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240721
Only TIME
12:56:09
General datetime
2024-07-21 12:56:09Z
For Database
2024-07-21 12:56:09
For HTTP1.1
Sun, 21 Jul 2024 12:56:09 GMT