"Tue, 18 Jun 2024 09:08:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240618
Only TIME
09:08:15
General datetime
2024-06-18 09:08:15Z
For Database
2024-06-18 09:08:15
For HTTP1.1
Tue, 18 Jun 2024 09:08:15 GMT