"Mon, 09 Dec 2024 16:20:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241209
Only TIME
16:20:21
General datetime
2024-12-09 16:20:21Z
For Database
2024-12-09 16:20:21
For HTTP1.1
Mon, 09 Dec 2024 16:20:21 GMT