SUN CALCULATOR

N56.1
E37.9

RUS

Latitude: ° N S

Longitude: ° E W

Zone offset: DST

Date:

Mean time:

Sun time:

Get ephemeris report, as follows:

for a given time

step mins

step day(s)

In CACULATOR mode you can enter geolocation, time zone and/or time (either local Sun or civil mean, considering DST).
Momentary ephemeris will be shown, as in real time mode. For DAILY and ANNUAL reports a choice of time step values is available. The result CSV-file may be freely downloaded and imported by all spreadsheet programs.
Ephemeris calculations are based on the equations from Astronomical Algorithms, by Jean Meeus. Near the poles, the algorithms may not work correctly.

You can get a pattern of horizontal sundials for a given latitude. Just print the generated PDF-file on thick paper, and follow the instructions.

Bonus: you may know the dates of Easter / Pesach holiday for a given year.
Pesah an Orthodox Easter dates are calculated with algorithms suggested by Johann Carl Friedrich Gauss.
Catholic Pashal tables are calculated with Lilius/Clavius algorithm.

Enjoy and have more sunny days!