a = get_hr_diff(30, 30, 12, 5)
print(a)
7 hours behind you

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a = get_hr_diff(21, 21, 2, 13)
print(a)
11 hours ahead of you

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a = get_hr_diff(21, 22, 22, 4)
print(a)
6 hours ahead of you

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a = get_hr_diff(12, 11, 6, 23)
print(a)
7 hours behind you

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a = get_hr_diff(9, 9, 0, 0)
print(a)
Same time as you

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a = get_hr_diff(1, 31, 6, 20)
print(a)
10 hours behind you

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a = get_hr_diff(30, 2, 22, 0)
print(a)
26 hours ahead of you

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# This is essentially a nonsense case

a = get_hr_diff(30, 5, 1, 0)
print(a)
Hour difference cannot be displayed

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# This is essentially a nonsense case

a = get_hr_diff(6, 28, 12, 5)
print(a)
Hour difference cannot be displayed