Interestingly, Revelation 11:1, 2 links these events to a time when the spiritual temple would be measured, or evaluated. Malachi chapter 3 mentions a similar inspection of the spiritual temple, followed by a time of cleansing. (Mal. 3:1-4) How long did this inspection and cleansing work take? It extended from 1914 to the early part of 1919. This period of time includes both the 1,260 days (42 months) and the symbolic three and a half days referred to in Revelation chapter 11.