"Sun, 15 Dec 2024 13:34:25"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241215
Only TIME
13:34:25
General datetime
2024-12-15 13:34:25Z
For Database
2024-12-15 13:34:25
For HTTP1.1
Sun, 15 Dec 2024 13:34:25 GMT