Mostly through observation of wise men. They realised that the sun repeated its course every 360 days (later refined as 365.25 days, of course) or so, and that gave us years... a cycle of the moon gave us months, and a period of light and darkness gave us days. Only the week was defined by man and by man alone - when God created the world, it was done in six stages (described in the Bible as 'days') and 'on the seventh day, God rested'. From that, men would take a day of rest every seventh day ( and those of a faithful disposition would 'keep it holy').
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how many weeks , months minutes and seconds in 20 years
81 weeks (567 days) is about 18.6 months. A month is not a fixed number of days, but the average is 30.4 days. 567 days = 1.55 Julian years x 12 = 18.6 months
It is about 2 years, 5 months and 2 weeks or 2.45 years.
24 months, 104 weeks, or 730 days
67,789,433,8976
One month is almost exactly four and a third weeks. Therefore 12 weeks is equal to two and three quarter months.
how many weeks , months minutes and seconds in 20 years
To calculate the total number of days in 2 years and 9 months, we first convert the years to days. There are 365 days in a year, so 2 years would be 2 x 365 = 730 days. For the 9 months, we need to consider the varying number of days in each month, which totals to 273 days (9 months x 30 days). Adding the days from the years and months together, we get a total of 730 days + 273 days = 1003 days in 2 years and 9 months.
30 months is 2.5 years. Each year is 52 weeks + 1 or 2 days (depending on leap years). So 2.5 years = 130 weeks plus 3 days (approx)
11 months and 2 wks
81 weeks (567 days) is about 18.6 months. A month is not a fixed number of days, but the average is 30.4 days. 567 days = 1.55 Julian years x 12 = 18.6 months
3 years 2 months and 3 days (from Jan - Dec and no leap years)
Yes, 104 weeks is two or three days shy of two years, and 36 months is three years.
It is about 2 years, 5 months and 2 weeks or 2.45 years.
7 years, 10 months, 16 days
24 months, 104 weeks, or 730 days
67,789,433,8976