"Sat, 18 Jan 2025 18:58:59"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250118
Only TIME
18:58:59
General datetime
2025-01-18 18:58:59Z
For Database
2025-01-18 18:58:59
For HTTP1.1
Sat, 18 Jan 2025 18:58:59 GMT