"Tue, 18 Jun 2024 13:40:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240618
Only TIME
13:40:45
General datetime
2024-06-18 13:40:45Z
For Database
2024-06-18 13:40:45
For HTTP1.1
Tue, 18 Jun 2024 13:40:45 GMT