"Sun, 22 Dec 2024 17:20:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241222
Only TIME
17:20:18
General datetime
2024-12-22 17:20:18Z
For Database
2024-12-22 17:20:18
For HTTP1.1
Sun, 22 Dec 2024 17:20:18 GMT