[Python] How to sort a dictionary with list of datetime objects as value?

I have a dictionary with lists of datetime as value:

month_a = [8,9,10]
day_a = [13,12,15]
month_b = [8,9,10]
day_b = [13,11,13]

dt_a=[]
for m,d in zip(month_a, day_a):
dt_a.append(datetime.datetime(2025, m, d).date())

dt_b=[]
for m,d in zip(month_b, day_b):
dt_b.append(datetime.datetime(2025, m, d).date())

my_dict = {'A':dt_a, 'B':dt_b}
print('original:')
print(my_dict)


I want to loop through all the datetime values in the list and sort the datetime. Finally a list of tuple with key and value is supposed to be generated . Like this:

list_sorted = [('A', datetime.date(2025, 8, 13)), ('B', datetime.date(2025, 8, 13)), ('B', datetime.date(2025, 9, 11)), ('A', datetime.date(2025, 9, 12)),
('B', datetime.date(2025, 10, 13)), ('A', datetime.date(2025, 10, 15))]

print('sorted:')
print(list_sorted)

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