"Mon, 09 Dec 2024 15:50:03"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241209
Only TIME
15:50:03
General datetime
2024-12-09 15:50:03Z
For Database
2024-12-09 15:50:03
For HTTP1.1
Mon, 09 Dec 2024 15:50:03 GMT