Time and Frequency of Meditation

I have read psychological studies and commentaries by meditators that *frequency is more important than duration* for meditation. Thus, 10 minutes seven days a week is more beneficial than 70 minutes in one sitting according to this view. 1. I am wondering what this site thinks of this idea. **Is regularity more important than duration?** 2. I am wondering whether changing the hour of regular meditation (e.g. one time at 5PM and another at 8AM) impedes on the efficiency of meditation practice. **Should meditation occur towards the same time each day ideally?** 3. If the previous ideas are true, then: **Would meditating a short amount each day, whatever the time, ensure regularity?** I'm open to hearing any ideas on the subject. Thank you.