"Mon, 16 Dec 2024 12:15:12"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241216
Only TIME
12:15:12
General datetime
2024-12-16 12:15:12Z
For Database
2024-12-16 12:15:12
For HTTP1.1
Mon, 16 Dec 2024 12:15:12 GMT