"Tue, 18 Jun 2024 20:25:38"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240618
Only TIME
20:25:38
General datetime
2024-06-18 20:25:38Z
For Database
2024-06-18 20:25:38
For HTTP1.1
Tue, 18 Jun 2024 20:25:38 GMT