"Sat, 21 Dec 2024 02:10:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241221
Only TIME
02:10:15
General datetime
2024-12-21 02:10:15Z
For Database
2024-12-21 02:10:15
For HTTP1.1
Sat, 21 Dec 2024 02:10:15 GMT