"Tue, 18 Jun 2024 20:19:23"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240618
Only TIME
20:19:23
General datetime
2024-06-18 20:19:23Z
For Database
2024-06-18 20:19:23
For HTTP1.1
Tue, 18 Jun 2024 20:19:23 GMT