"Tue, 18 Jun 2024 16:39:42"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240618
Only TIME
16:39:42
General datetime
2024-06-18 16:39:42Z
For Database
2024-06-18 16:39:42
For HTTP1.1
Tue, 18 Jun 2024 16:39:42 GMT