Talk:Crystal Timekeeper/@comment-9546691-20130610031844/@comment-6806324-20130610143120

It's 11 hours to give you a one-hour margin of error. If they had made it every 12 hours then it would take absolutely perfect collection (collecting your crystals the instant they become available) to collect twice a day. With an 11-hour wait you can collect twice a day without having to worry about doing it perfectly. This lets you get four crystals per day in a very convenient way (unlike, say, Crystal Wish, which is one crystal every six hours and would require four perfect collections to consistently get four crystals a day!).

With Crystal Timekeeper and Crystal Valentine I usually collect once in the morning during the time I'm getting ready for work (7-8 AM) and then once in the evening near dinner time. I don't see why you should be losing any sleep, the once-per-11-hours schedule is the easiest and least-stressful schedule of all the crystal producers :).