"Mon, 09 Dec 2024 20:18:11"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241209
Only TIME
20:18:11
General datetime
2024-12-09 20:18:11Z
For Database
2024-12-09 20:18:11
For HTTP1.1
Mon, 09 Dec 2024 20:18:11 GMT