"Sat, 27 Jul 2024 21:56:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240727
Only TIME
21:56:18
General datetime
2024-07-27 21:56:18Z
For Database
2024-07-27 21:56:18
For HTTP1.1
Sat, 27 Jul 2024 21:56:18 GMT