"Sat, 21 Dec 2024 18:47:05"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241221
Only TIME
18:47:05
General datetime
2024-12-21 18:47:05Z
For Database
2024-12-21 18:47:05
For HTTP1.1
Sat, 21 Dec 2024 18:47:05 GMT