The time it takes to upscale old wedding videos to 4K depends on several factors, but here’s a clear general estimate: For a short clip (a few minutes): It can take 5–20 minutes on a standard computer. For a longer video (20–60 minutes): It may take 30 minutes to a few hours. For very long footage (1+ hours): It could take several hours or more. The actual time varies based on: Tool/Software Used – Some tools are faster or more optimized than others. Computer Power—A stronger CPU/GPU speeds up the process. Video Resolution & Length – Higher resolution and longer footage take more processing time. Settings You Choose—Higher quality upscaling and denoising increase processing time. Overall, simple edits might be done in minutes, but full AI video enhancement with a 4K wedding video upgrade usually takes longer for larger files.