Convert days to weeks (d to wk)

How to convert days to weeks

Multiply the value in d by 0.142857142857: the result is in wk.

Where these two units are used

The day is 86,400 seconds by convention, but the Earth's rotation drifts: twenty-seven leap seconds have been added since 1972, the last at the end of 2016, and their abolition is settled for 2035. The week is the only common time unit with no astronomical basis at all: neither the Sun nor the Moon yields seven days, which come from a religious usage that became universal. Two weeks have a word of their own in some languages and none in others: English says fortnight, fourteen nights, French une quinzaine, Spanish quincena which mostly names the half-month pay period, while German has only zwei Wochen.

Conversion table, days to weeks

Factors from the SI brochure (BIPM) and from NIST Special Publication 811. Methodology & sources.

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