"Sat, 27 Jul 2024 23:21:34"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240727
Only TIME
23:21:34
General datetime
2024-07-27 23:21:34Z
For Database
2024-07-27 23:21:34
For HTTP1.1
Sat, 27 Jul 2024 23:21:34 GMT