"Sat, 27 Jul 2024 18:21:37"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240727
Only TIME
18:21:37
General datetime
2024-07-27 18:21:37Z
For Database
2024-07-27 18:21:37
For HTTP1.1
Sat, 27 Jul 2024 18:21:37 GMT