Calendars – A Daily Necessity
Calendars are basically a system or rather a method of organising one’s days in a manner which corresponds to social, commercial, administrative and religious commitments of the public. This is usually done by means of naming the time periods such as days, months, years and weeks. Each name ascribed to a day is called date.
Periods in most calendars mostly synchronised as per the cycles followed by either sun or by the moon. Several of the civilizations as well as societies in the past devised calendars which were derived from previous calendars and were modelled on systems or dates they followed for specific purposes.
- A calendar can also be seen as physical device often maintained on paper. Calendars nowadays also have become computerised such that they even remind the users about the personal commitments, appointments and also upcoming events of the customers using it.
- The word calendar as used in the Indian language has been originally derived from Kalendae, which was a Latin word and was used to denote first day in each month. A system of calendar, which has been fully developed, will have a separate date for each day of the different months. It is important to note here that any week cycle based calendar is not a full system for calendar. Nor is it systematic to name all the days in one year without having the means to classify the years from each other.
- The calendar system in practice today in the world, just counts the line of time from some known reference date. The only way that various calendar following this system can be different is based on their use of different dates for the reference purpose specially using a date in recent past may also reduce the inconvenience caused due to long calculations and also to have numbers that are comparatively smaller. Calculations and computations in such kind of calendar systems are based on simple additions as well as subtractions. Usually most calendar system include one or more kinds of cycles, these may be either cyclic or acyclic elements.
- Several of the calendar systems incorporate simple elements. Hebrew calendar for example has a week cycle comprising seven day. It has also been seen that most societies operate more than one calendar simultaneously comprising unrelated cycles. In this reference one can take the example of Gregorian calendar which does not follow a seven days cycle of weeks but Western society uses the two together. And it has been seen that most calendar also indicate Gregorian date as well as the week day.
Most societies of the east also use the parallel calendars of lunar as well as solar. Calendars hence become an important utility tool for people all over the world.