according to science, 365.25 days are in a year.
according to science how many days are in a year?
365.25 days
the julian year, as used in astronomy and other sciences, is a time unit defined as exactly 365.25 days. this is the normal meaning of the unit "year" (symbol "a" from the latin "annus") used in various scientific contexts. the julian century of days and the julian millennium of days are used in astronomical calculations. fundamentally, expressing a time interval in julian years is a way to precisely specify how many days (not how many "real" years), for long time intervals where stating the number of days would be unwieldy and unintuitive. by convention, the julian year is used in the computation of the distance covered by a light-year.
year
1. on how many days in the last 3 months did you miss work or school because of your headaches?15





















































2. how many days in the last 3 months was your productivity at work or school reduced by half or more because of your headaches? (do not include days you counted in question 1 where you missed work or school.) 45





















































3. on how many days in the last 3 months did you not do household work because of your headaches? 20
migraine disability assessment test