"Thu, 29 Feb 2024 20:15:30"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240229
Only TIME
20:15:30
General datetime
2024-02-29 20:15:30Z
For Database
2024-02-29 20:15:30
For HTTP1.1
Thu, 29 Feb 2024 20:15:30 GMT