Who has a perpetual calendar?

Daily bus calendar or birthday calendar.

Risuo perpetual calendar is the world's first multifunctional perpetual calendar with rich information and special years. It is made by modern high-precision astronomical calendar calculation algorithm and compared with Gregorian calendar, lunar calendar and Islamic calendar. You can query the dates of solar calendar, lunar calendar and Islamic calendar, solar terms and holidays, heavenly stems and earthly branches of the current month, the time of solar terms, the time of the moon phase and the first month (all accurate to the minute), solar eclipse, the ratio of the bright side of the moon at each moment, julian calendar date series, the number of days between any two dates, the date of entering and leaving plum blossoms, and the daily constellation, all over the world. According to the latitude and longitude of any place in the world, you can query the daily sunrise, sunset, morning time, dawn time, night time, sunrise time, sunset time and morning time, universal time, local solar time, apparent solar time and Julian day at any time. Real-time, timing and animation display modes can be used to display the position coordinates of the sun and the moon, the position in the local sky and the direct light on the earth at any time in 4000 years in the form of charts. It can provide accurate data for meteorological, marine, agricultural, biological, geographical, geological, military, calendar, surveying and mapping, aviation, navigation, archaeology and other professionals. It can also provide people with all kinds of information related to date and time in their daily work and life.

The solar calendar uses modern high-precision advanced algorithm to calculate the intersection time of solar terms and the sun-moon conjunction time, which has high accuracy and reliable results. Compared with the Astronomical Almanac of China compiled by Purple Mountain Observatory of China Academy of Sciences and the internationally famous celestial position calculation software SkyMap Pro, the maximum error of all kinds of time information in this almanac is less than one minute, which is a reliable and high-precision almanac.

Portable application calendar is pure and does not need to be installed. There is only one program file, which can be run after being copied to any folder. The program does not have any plug-ins, and the registry will not be modified when it runs. If you want to delete it, just delete the program file.

Professor Liu Anguo of Wuhan Huazhong Agricultural University specially developed perpetual calendar software for the "Time Website" and "National Time Website" of the National Time Service Center. The software is a multifunctional perpetual calendar with three calendars, rich in information and special years. The time span can be as long as 4000 years (the standard version is 300 years, 1800-2 100), that is, after the implementation of the Gregorian calendar 1583, the Ming Wanli1year, ending in 5582 AD. The information that can be inquired includes: daily Gregorian calendar, dates of Chinese and Islamic calendars (Hijra), solar terms, holidays, heavenly stems and earthly branches of year, month and day, time of solar terms intersection, moon phase and time of the first lunar month (all accurate to the minute), solar eclipse, ratio of bright moon at every moment, julian calendar date order, days from today, days between any two dates, twelve o'clock column, dog days, and so on. Daily sunrise and sunset time and day length (from sunrise to sunset), dawn and dark time, real-time apparent position of the sun and the moon at each moment (position in local sky) and charts, direct position and charts of the sun and the moon on the earth at each moment, and position coordinates of the sun and the moon at 0 o'clock every moment (including longitude and almanac of the Yellow River) in China. It can be meteorology, ocean, geography and almanac. , it can also be used for people to query all kinds of information related to date and time in their daily work and life.

This program is a purely portable application and does not need to be installed. There is only one program file, which can be run after being copied to any folder, and no information will be written in the registry when running. If you want to delete it, just delete the program file.

The standard version of Nissan Calendar is free software. You may use, copy or disseminate this program at will, but you shall not modify or decompile this program in any way, nor shall you use this program for commercial purposes. If you copy or distribute the program, you must include the program and this document. Please read the help information in the program carefully before using the data in the program. If you want to inquire about the perpetual calendar with a longer span, please contact the developer directly: Professor Liu Anguo.