Something not done every days, but since everywhere you look here at city supermarket parkings the new boards pop up saying the first 1-1.5-2 hours are free, but if you overstay you have to fork over 30-40 Euro, fully automated license plate reading. Found while checking up, not a biggy, a TagInfo sample that somehow makes me think this was an tag that got replicated 2340 entries (maybe with JOSM Gridify)
maxstay:conditional=120␣minutes␣@␣(Mo-Sa␣9:00-21:00)
The one I’m applying for the parking of todays mapping
maxstay:conditional=60 minutes @ (Mo-Fr 08:00-20:00) or as the sign says 1 hours @ (Mo-Fr 08:00-20:00), hour in the plural even at 1.
Anyway, for someone who likes scripting a correction to 120 minutes @ (Mo-Sa 09:00-21:00), at least think a leading zero is missing 
OT/ Oh, think it’s one for @Friendly_Ghost since it’s all in one place on 2340 parking spaces in Diemen. Not on-topic, why would one tag that on individual spaces and not on parking areas and why in a pure residential zone is a different question… maybe to make room for the commuters returning home in the evening. Moi at least sticks all the tags, paving types, lighting on the parking areas and only disabled, normal, delivery etc on the spaces to keep it simple. Often here the disabled parking spaces have smooth paving and the rest grass_paver, the newer ones that is, whilst the parking aisles are mostly asphalt. /OT
