[Python] Flatten Data By ID

I have a data table that looks like this (note this is condensed, there are some ID with 2+ TIMEs):

ID TIME
1 10:12
1 4:43
2 9:12
3 1:43
3 16:47
4 2:55


I would like to flatten it so it looks like this:

ID Time_1 Time_2
1 10:12 4:43
2 4:43
3 1:43 16:47
4 2:55


I'm reviewing 'flattening' options but have not yet found the correct answer.

https://pandas.pydata.org/pandas-docs/version/0.14.1/generated/pandas.Index.flatten.html

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