"Sat, 21 Dec 2024 09:19:25"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241221
Only TIME
09:19:25
General datetime
2024-12-21 09:19:25Z
For Database
2024-12-21 09:19:25
For HTTP1.1
Sat, 21 Dec 2024 09:19:25 GMT