Historically SC will have maintanance break 2 or 3 hours before the timer on the collectors end to cancel the event. If your level 3 drill managed to complete before the maintanance break and you will get 7 days boost for that drill for 1 gem.
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Historically SC will have maintanance break 2 or 3 hours before the timer on the collectors end to cancel the event. If your level 3 drill managed to complete before the maintanance break and you will get 7 days boost for that drill for 1 gem.