"Sat, 24 Feb 2024 20:15:49"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240224
Only TIME
20:15:49
General datetime
2024-02-24 20:15:49Z
For Database
2024-02-24 20:15:49
For HTTP1.1
Sat, 24 Feb 2024 20:15:49 GMT