TOKYO — Oriental Land has revealed that Tokyo Disneyland, which has been shuttered since the March 11 earthquake and tsunami, will reopen on Friday.Also, Tokyo DisneySea will open its doors again on April 28, the day before the start of the week-long Golden Week holiday. Opening hours will be from 8 a.m. to 6 p.m. Pre-quake, the parks stayed open until 10.00 p.m., but Oriental Land is cutting back on evening hours to save electricity. Tokyo Electric Power (Tepco) has announced that it will no longer impose the rolling blackouts that had been a barrier to reopening the parks. Oriental Land is drafting a plan for electrical power cuts that it intends to finalize by May. This summer, when power demand ordinarily spikes, Tepco may be forced to reinstate the blackouts — and Oriental Land wants to be prepared. Part of the Disneyland parking lot, which is built on reclaimed land, underwent liquefaction from the quake and had to be repaired. The park facilities themselves were not damaged, however. This has been the first time that TDL has been forced to shut its doors since opening in 1983.