
Twitch's clip button stops at 60 seconds, and there is no setting on Twitch to change that. The way around it is to cut the moment from the VOD, the saved copy of the stream, which has no such limit.
Open the channel on Twitch, go to Videos, and pick the past broadcast. Copy the address from your browser. It looks like twitch.tv/videos/123456789.
Paste the link into ClipSniper. Type the start and end times, or play the video and press Use video time when you reach each point.
Drag the ends to land exactly where you want. Split the clip and remove the slow parts, or mute any section with music in it.
Press Create clip. You get an MP4 in the quality of the stream, up to 1080p, with no watermark.
Twitch keeps past broadcasts for a limited time, usually 7 to 60 days depending on the channel, and some streamers turn them off. If the Videos tab has no past broadcast for that day, the stream was not saved and nobody can clip it.
Highlights and uploads made by the streamer work the same way as past broadcasts: copy their address and paste it in.
A lot. Long enough for a full play, a whole round or a highlight reel of a stream, which is what most people need.
No. You get the quality the stream was broadcast in, up to 1080p at 60 frames per second.
Yes. Mark a longer stretch, split it where the good parts start and end, and remove what you do not want. What is left downloads as one clip.
No. It works in the browser on a computer or a phone, with nothing to install and no sign-up.
Yes, with no watermark on your clips.
See also: How to download a Twitch clip · How to clip a Twitch VOD