simple 1st take 70 years divide it by 4 because every 4 years there is one extra day :) so
70/4=17.5 which is 17 extra days :)
1 year = 365 days
so 365 times 70 years:
365*70 = 25550 days + 17 extra days = 25567 days
now multiply it by 24 for the hours
25567*24 = 613608 hours
n finally how many minutes (not seconds) in one hour so you multiply 613608 by 60 minutes (not seconds)
613608*60= 36816480.... there you go :)
70 years = 25567 days
70 years = 613608 hours
70 years = 36816480 minutes (not seconds)
give or take a few lol because of daylight savings time dst :P hope this answers your question :)
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Note: 70 years starting January 1, 2009 - January 1 2079
1 Year = 365 days / 15 of the 70 years have 366 days (leap years)
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(70 x 365) + 15 = 25,565 days
25565 x 24 = 613,560 hours
613560 x 60 = 36,813,600 minutes
36813600 x 60 = 2,208,816,000 seconds
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Answer: 70 Years = 3,640 Weeks = 25,565 days = 613,560 hours = 36,813,600 minutes = 2,208,816,000 seconds