There very many, common examples include: 4/4, 2/4, 3/4, 3/8, 5/8, 6/8, 9/8, 12/8, 2/2
It depends on the time signature. If it is a 4:4 time then it lasts one beat, but if it's a different time signature then it varies.
The time signature is the time and beat of the song, and the key signature is what major or minor it is in
2/2 time signature
I believe the answer you're looking for is either "time signature" or "tempo" (which are two different concepts).
its time signature is 3/4
The time signature is placed on the staff between the clef and the key signature.
It comes before the time signature. The clef comes before the key signature.
What is the time signature of dance?
It has a time signature of 6/8.
The song is in 4/4 time signature.
Playing a musical piece with a different time signature can be challenging because it requires adjusting your sense of rhythm and timing. It may feel unfamiliar and require extra practice to get comfortable with the new timing.
4/4's time signature