How to get documents from MongoDB within a specific date or time range using default ObjectId indexes

gistfile1.txt

import time
from datetime import datetime

def mongoDatetimeToObjectId(dt):
  return '%08x0000000000000000' % time.mktime(dt.timetuple())

# Allows doing queries based on creation time without a specific index
day1 = datetime(2016,1,1)
day2 = datetime(2016,2,1)
conn.collection.query({'_id':{'$gt':mongoDatetimeToObjectId(day1),'$lt':mongoDatetimeToObjectId(day2)}})