"Sun, 22 Dec 2024 12:15:10"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241222
Only TIME
12:15:10
General datetime
2024-12-22 12:15:10Z
For Database
2024-12-22 12:15:10
For HTTP1.1
Sun, 22 Dec 2024 12:15:10 GMT