"Sun, 22 Dec 2024 12:15:36"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241222
Only TIME
12:15:36
General datetime
2024-12-22 12:15:36Z
For Database
2024-12-22 12:15:36
For HTTP1.1
Sun, 22 Dec 2024 12:15:36 GMT