Based on the current date and location you’re asking about, here’s how to determine when it gets dark now:

• “Darkness” generally begins at sunset and continues through civil twilight (when the Sun is between 0° and -6° below the horizon). If you want the precise moment for tonight, you need the local sunset time for your location and date.
• If you provide a city or region (and confirm the date you mean by “now”), I can give you the exact sunset time and the end of civil twilight for that location.

What I can deliver right away:

• If you’re in Berlin, for example, sunset times in early November are typically around 4:30–4:45 PM local time, with civil twilight lasting about 20–25 minutes after sunset. In late October, civil twilight can extend near 30 minutes after sunset. For November 3, Berlin’s sunset is usually around 4:31–4:34 PM local time, with darkness starting roughly shortly after, depending on whether you count civil or nautical twilight. If you want the exact minute-for-minute times for today, I can pull the precise values for your specific city and date.