http://kancolle.wikia.com/wiki/Winter_2018_Event
E-1: 00:00
E-2: 02:15
E-3: 05:10
E-4: 08:15
E-5 (Transport): 14:25
E-5 (Boss): 16:45
E-6 (Boss 1): 20:20
E-6 (Boss 2): 24:10
E-6 (Boss 3): 27:40
E-7 (Boss 1): 32:30
E-7 (Boss 2): 37:20
Difficulty: Casual