class Solution(object):
def findMinDifference(self, timePoints):
"""
:type timePoints: List[str]
:rtype: int
"""
timePoints = [s.split(':') for s in timePoints]
timePoints = [int(x) * 60 + int(y) for x, y in timePoints]
timePoints.sort()
ans = timePoints[1] - timePoints[0]
for i in range(len(timePoints)):
x = timePoints[i]
y = timePoints[(i + 1) % len(timePoints)]
if x > y:
y += 24 * 60
ans = min(ans, y - x)
return ans