"Sat, 18 Jan 2025 11:30:48"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250118
Only TIME
11:30:48
General datetime
2025-01-18 11:30:48Z
For Database
2025-01-18 11:30:48
For HTTP1.1
Sat, 18 Jan 2025 11:30:48 GMT