from datetime import datetime, timedelta
dt = datetime.now()
print(dt)
print(f'{dt:%H:%M:%S}')
n = 5
dt = dt + timedelta(hours = n)
print(dt)
print(f'{dt:%H:%M:%S}')
'''
run:
2022-06-24 09:37:58.312322
09:37:58
2022-06-24 14:37:58.312322
14:37:58
'''