"Tue, 18 Jun 2024 20:19:56"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240618
Only TIME
20:19:56
General datetime
2024-06-18 20:19:56Z
For Database
2024-06-18 20:19:56
For HTTP1.1
Tue, 18 Jun 2024 20:19:56 GMT