Database
[{"_id":{"$oid":"628d9c17cd956ed58baa2e6c"},"calculatedAt":"","count":0,"createdAt":"2022-04-25 01:54:21","lastSyncAt":"2022-04-25 03:54:21"}]
Query
db.collection.aggregate([{$addFields:{lastSyncDate:{$dateFromString:{dateString:"$lastSyncAt"}}}},{$addFields:{hours:{$dateDiff:{startDate:"$lastSyncDate",endDate:ISODate("2022-05-25T03:29:43.902Z"),unit:"hour"}}}},{$match:{hours:{$gt:2}}},{$project:{hours:0,lastSyncDate:0}}])