"Sat, 21 Dec 2024 11:38:01"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241221
Only TIME
11:38:01
General datetime
2024-12-21 11:38:01Z
For Database
2024-12-21 11:38:01
For HTTP1.1
Sat, 21 Dec 2024 11:38:01 GMT