This app was mentioned in 3 comments, with an average of 1.00 upvote
I missed my 100 day too! Didn't realize till today. At 117 days. The widget is https://play.google.com/store/apps/details?id=com.rubenmayayo.timecounter
Maybe try something like this instead https://play.google.com/store/apps/details?id=com.rubenmayayo.timecounter