"Sat, 14 Dec 2024 17:47:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241214
Only TIME
17:47:21
General datetime
2024-12-14 17:47:21Z
For Database
2024-12-14 17:47:21
For HTTP1.1
Sat, 14 Dec 2024 17:47:21 GMT