"Sun, 29 Dec 2024 21:33:56"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241229
Only TIME
21:33:56
General datetime
2024-12-29 21:33:56Z
For Database
2024-12-29 21:33:56
For HTTP1.1
Sun, 29 Dec 2024 21:33:56 GMT