Which are correct:
1) Is this a time for dancing?
2) Is this a time to dance?
3) Is this the time for dancing?
4) Is this the time to dance?
5) Is this a suitable time for dancing?
6) Is this an suitable time to dance?
If you change "an" to "a" in 6), they will all be correct.
"Invading armies have no rights." Noam Chomsky