"Tue, 18 Jun 2024 16:16:40"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240618
Only TIME
16:16:40
General datetime
2024-06-18 16:16:40Z
For Database
2024-06-18 16:16:40
For HTTP1.1
Tue, 18 Jun 2024 16:16:40 GMT