"Fri, 21 Jun 2024 05:44:44"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
05:44:44
General datetime
2024-06-21 05:44:44Z
For Database
2024-06-21 05:44:44
For HTTP1.1
Fri, 21 Jun 2024 05:44:44 GMT