"Sat, 07 Dec 2024 15:49:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241207
Only TIME
15:49:15
General datetime
2024-12-07 15:49:15Z
For Database
2024-12-07 15:49:15
For HTTP1.1
Sat, 07 Dec 2024 15:49:15 GMT