In Darkness (2017) 1h 50min | Thriller | 2017 (UK) A blind musician hears a murder committed in the apartment upstairs from hers that sends her down a dark path into London's gritty criminal underworld.
For other uses, see Calendar (disambiguation). For the Gregorian calendar for this year, see Leap year starting on Friday. A calendar is a system of organizing days for social, religious, commercial or administrative purposes. This is done by giving names to periods of time, typically days, weeks, months, and years. A date is the designation of a single, specific day within such a system. A calendar is also a physical record (often paper) of such a system.
First, a definition in terms. There are only three kinds of calendars in use: the solar, the lunar. and the luni-solar. Solar calendars are based upon how long it takes the earth to revolve around the sun. The. Gregorian calendar is a solar calendar with each new year arbitrarily beginning in the middle of.