How to find documents created 60 seconds ago
seconds = 60
gen_time = datetime.datetime.today() - datetime.timedelta(seconds=seconds)
dummy_id = ObjectId.from_datetime(gen_time)
db.CollectionName.find({"_id": {"$gte": dummy_id}})
If you're in a different timezone, you may need to offset the datetime to UTC
seconds = 60
gen_time = datetime.datetime.today() - datetime.timedelta(seconds=seconds)
# converts datetime to UTC
gen_time=datetime.datetime.utcfromtimestamp(gen_time.timestamp())
dummy_id = ObjectId.from_datetime(gen_time)
db.Collection.find({"_id": {"$gte": dummy_id}})