Dates
The date in a calendary is a reference to some in a calendaring system. Calendars date one day can be identified. The number of days between two dates can be calculated. For example, "July 24, 2015" is ten days after "July 14, 2015" on the Gregorian calendar. Date of occurrence depends on time zone. As Pearl Harbor attacks occurred on December 7, 1941, in Hawaii, but on December 8, according to the time of Japan. One date may be another date on different systems such as the Gregorian calendar and the Julian calendar. In some of the date-writing calendars system consists of three parts, namely: date, month or month and year. There are also days to be added.