When do the extra 75 days after the Tribulation occur?
The extra 75 days occur after the Tribulation ends, following the 1,260 days. They consist of an additional 30 days and an extra 45 days added to the end. They come after He returns and sets up His Kingdom, as God revealed to Daniel.
Les explains that the Tribulation is 1,260 days, or 42 months, which is half of the seven-year 2,520-day period. After that, an extra 30 days are added, and then an extra 45 days, totaling 75 additional days at the end of the Tribulation. Daniel is told to be patient and wait for the 1,335 days. Les notes that these extra 75 days occur after He returns and sets up His Kingdom, and Daniel is told to rest until the end.