Computation of Daylengths, Sunrise/Sunset Times, Twilight and Local Noon
Another sunset and sunrise calculator by NOAA
Select for dates
Use the current date
Input a date value
Select for locations
Use menu of cities
Input latitude & longitude
Daylight savings
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Calculation Date
Year
Month
January
February
March
April
May
June
July
August
September
October
November
December
Day
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Location
Utsjoki
Tornio
Oulu
Vaasa
Tampere
Turku
Helsinki
Stockholm
Hamburg
London
Berlin
Paris
Vienna
Munich
Amarillo Tex.
Anchorage
Atlanta
Baltimore
Chicago
Dallas
Denver
Detroit MI
Honolulu
Houston
Las Vegas
Los Angeles
Miami
Montreal
New York
Quebec
San Francisco
Seattle
Toronto
Tokyo
Melbourne
Sydney
Brisbane
Auckland
Cape Town
Las Palmas
Halifax Can
input
Latitude
°
´
N
S
Find
latitudes
Longitude
°
´
W
E
Find
longitudes
Local time
h
min
TZ
Find timezones
Temperature
o
C
Refraction
Morning: - Begin of Nautical (= End of Astronomical) Twilight: Sun is 12 degrees below horizon - Begin of Civil (= End of Nautical) Twilight: Sun is 6 degrees below horizon - Sunrise: Sun is 0.83 degrees (= 50 arc-minutes) below horizon Noon: Sun is at meridian, max. altitude Evening: - Sunset: Sun is 0.83 degrees (= 50 arc-minutes) below horizon - End of Civil (= Begin of Nautical) Twilight: Sun is 6 degrees below horizon - End of Nautical (= Begin of Astronomical) Twilight: Sun is 12 degrees below horizon Solar radiation max power at noon, calculation for a constant extinction coefficient 0.9 assumed Solar azimuth: direction angle clockwise, north = zero, south = 180
To change the location parameters, do edit the JavaScript function GetLastVisit()
Online-Photoperiod Calculator
V 1.94 L
Author: J. Lammi
Time-Zone-Map (PDF)
sun-rise-set.zip (button for your taskbar)