"Tue, 18 Jun 2024 18:54:05"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240618
Only TIME
18:54:05
General datetime
2024-06-18 18:54:05Z
For Database
2024-06-18 18:54:05
For HTTP1.1
Tue, 18 Jun 2024 18:54:05 GMT