Once you reach Episode 4, you can start opening Timer Coffin every 4 hours! Access it from the Store.

DISCLAIMER: Time Skips bought with Dream Crystals do not affect Timer Coffin, as they are based on real-time.

TIPS:

• The longer you wait to open Timer Coffin, the more Nanospiders will be inside.
• If you open Timer Coffin sooner, you’ll receive more of other reward types (Cards, Nanospiders, Dream Crystals). In the long run, you will be able to open more Coffins in a 24 hour period, which means more Nanospiders total than if you had waited.

NOTE: There are two requirements to open Timer Coffin:

1. Your device's date/time must match universal time. If you are unable to automatically sync on your device, you can match your device time to universal time by checking https://time.is.
2. The internet is used to check universal time so you must be connected to the internet.