I think they have been shooting for about 30 days so its more than Seagals recent Waxman films
In that case they would have had to film every single day, even sundays, and that rarely happens.
The lighting guy posted a picture on monday 2 March with a hashtag #scouting meaning that they likely hadn't started filming yet, and on March 16 he posted that it was day 10, that must mean that they started filming on tuesday March 3rd and filmed mondays through fridays.
If they wrapped this monday it means they must have filmed for 20 days, or a couple days more if they filmed on some saturdays as well.