"Sun, 29 Dec 2024 09:39:13"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241229
Only TIME
09:39:13
General datetime
2024-12-29 09:39:13Z
For Database
2024-12-29 09:39:13
For HTTP1.1
Sun, 29 Dec 2024 09:39:13 GMT