"Tue, 18 Jun 2024 13:40:40"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240618
Only TIME
13:40:40
General datetime
2024-06-18 13:40:40Z
For Database
2024-06-18 13:40:40
For HTTP1.1
Tue, 18 Jun 2024 13:40:40 GMT