"Sat, 21 Dec 2024 09:34:59"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241221
Only TIME
09:34:59
General datetime
2024-12-21 09:34:59Z
For Database
2024-12-21 09:34:59
For HTTP1.1
Sat, 21 Dec 2024 09:34:59 GMT