Revelation 11:3

11:3 And I will grant my two witnesses authority to prophesy for 1,260 days, dressed in sackcloth.

Revelation 12:6

12:6 and she fled into the wilderness where a place had been prepared for her by God, so she could be taken care of for 1,260 days.

Revelation 13:5

13:5 The beast was given a mouth speaking proud words and blasphemies, and he was permitted to exercise ruling authority for forty-two months.