"Sun, 15 Dec 2024 19:02:53"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241215
Only TIME
19:02:53
General datetime
2024-12-15 19:02:53Z
For Database
2024-12-15 19:02:53
For HTTP1.1
Sun, 15 Dec 2024 19:02:53 GMT