"Mon, 16 Dec 2024 18:47:19"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241216
Only TIME
18:47:19
General datetime
2024-12-16 18:47:19Z
For Database
2024-12-16 18:47:19
For HTTP1.1
Mon, 16 Dec 2024 18:47:19 GMT