Overpass-turbo is a great to quickly get data and stats from OpenStreetMap.
- get the objects which have been added to OpenStreetMap since a specific timestamp
- copy these lines to overpass-turbo
[out:json][timeout:600]; // gather results ( node(newer:"2019-04-05T16:00:00Z")({{bbox}}); way(newer:"2019-04-05T16:00:00Z")({{bbox}}); relation(newer:"2019-04-05T16:00:00Z")({{bbox}}); ); // print results out meta; >; out skel qt;
- adjust the timestamp
- draw a bounding box for the area you are interested in