"Tue, 18 Jun 2024 21:30:24"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240618
Only TIME
21:30:24
General datetime
2024-06-18 21:30:24Z
For Database
2024-06-18 21:30:24
For HTTP1.1
Tue, 18 Jun 2024 21:30:24 GMT