Amundsen-Scott - permanent station of the US, Antarctica - Sunrise, sunset, dawn and dusk times, table

Date	Sunrise	Sunset	Length	Change	Dawn	Dusk	Length	Change
Today	---	---	0:00		---	---	0:00
+1 day	---	---	0:00	00:00 equal length	---	---	0:00	00:00 equal length
+1 week	---	---	0:00	00:00 equal length	---	---	0:00	00:00 equal length
+2 weeks	---	---	0:00	00:00 equal length	---	---	0:00	00:00 equal length
+1 month	---	---	0:00	00:00 equal length	---	---	0:00	00:00 equal length
+2 months	---	---	0:00	00:00 equal length	---	---	0:00	00:00 equal length
+3 months	---	---	0:00	00:00 equal length	---	---	0:00	00:00 equal length
+6 months	---	---	24:00	24:00 longer	---	---	24:00	24:00 longer

Notes: Daylight saving time, * = Next day. Change preferences.

Amundsen-Scott - permanent station of the US, Antarctica - Sunrise, sunset, dawn and dusk times, graph

Darkness

Dawn

Sunshine

Dusk

Notes: How to read this graph? Change preferences.

Move pointer over the graph to get more information

Size:

Evaluate the effects of different time zone and daylight saving time settings Evaluate the effects of different time zone settings

What if...

Base time zone: UTC+12 + : h = UTC

Daylight saving time:

Count annual daylight hours between: and o'clock

Darkness
Dawn
Sunshine
Dusk

Show and hide

Grid

Today

Save image

Save image as

Amundsen-Scott - permanent station of the US, Antarctica - Sun path diagram

Sun path

Today

June solstice

December solstice

Annual variation

Equinox (March and September)

Sunrise/sunset

Time

Notes: • = Daylight saving time, * = Next day. How to read this graph? Change preferences.

Size:

Rotation:

Ultraviolet radiation, Vitamin D, Shadow length

Show and hide

January 21, sun path

February 21, sun path

March equinox, sun path

April 21, sun path

May 21, sun path

June solstice, sun path

July 21, sun path

August 21, sun path

September equinox, sun path

October 21, sun path

November 21, sun path

December solstice, sun path

Today, sun path

Annual variation

Equinoxes, sun path

Reverse the East and West axes

Shadow

Shadow length

× object's height


0-	⅒-	¼-	½-	1-	1½-	2-	3-	4-	5-	10-	20-	-∞

Solar ultraviolet (UV) radiation [?]

Rough clear sky estimates. Wavelengths: UVA λ=360 nm, UVB λ=300 nm. Source: CICARMA, Emanuela, et al. Sun and sun beds: inducers of vitamin D and skin cancer. Anticancer research, 2009, 29.9: 3495-3500.

Both UVA and UVB cause skin damage (sunburn, premature aging, skin cancer).
UVB is responsible for delayed tanning and burning.
UVA is responsible for the immediate tanning effect.
Exposure to UVB radiation helps the skin produce vitamin D (D3).

UVA, Vertical cylinder [?]

CICARMA, Emanuela, et al. Sun and sun beds: inducers of vitamin D and skin cancer. Anticancer research, 2009, 29.9: 3495-3500.

UVB, Vertical cylinder [?]

CICARMA, Emanuela, et al. Sun and sun beds: inducers of vitamin D and skin cancer. Anticancer research, 2009, 29.9: 3495-3500.

UVA, Horizontal plane [?]

CICARMA, Emanuela, et al. Sun and sun beds: inducers of vitamin D and skin cancer. Anticancer research, 2009, 29.9: 3495-3500.

UVB, Horizontal plane [?]

CICARMA, Emanuela, et al. Sun and sun beds: inducers of vitamin D and skin cancer. Anticancer research, 2009, 29.9: 3495-3500.

UVB radiation is sufficient for vitamin D3 synthesis [?]

TSIARAS, William G.; WEINSTOCK, Martin A. Factors influencing vitamin D status. Acta dermato-venereologica, 2011, 91.2: 115-124.

Normalized dose rate

0		1.6

Save image

Save image as

Live compass view

Amundsen-Scott - permanent station of the US, Antarctica - Seasons graph and Earth's orbit

Events

▲

Today

▲

December solstice

▲

March equinox

▲

June solstice

▲

September equinox

▲

Perihelion [?]

▲

Aphelion [?]

Earth's orbit

This year

Min, years 1600–2600 [?]

Max, years 1600–2600 [?]

Variation, years 1600–2600

Seasons

Winter

Spring

Summer

Fall

Notes: Earth's orbit is highly exaggerated for illustrative purposes. Change preferences.

Size:

Save image
	Save image as

Event	Date	Time to
December solstice	2026-12-22 09:50	221d 5h 49min
March equinox	2027-03-21 09:24	310d 5h 23min
June solstice	2026-06-21 20:24	37d 17h 23min
September equinox	2026-09-23 12:05	131d 9h 4min

Amundsen-Scott - permanent station of the US, Antarctica - Solar energy and surface meteorology

Variable	I	II	III	IV	V	VI	VII	VIII	IX	X	XI	XII
Insolation, kWh/m²/day	8.57	4.54	0.60	0.00	0.00	0.00	0.00	0.00	0.06	2.58	7.18	9.61
Clearness, 0 - 1	0.72	0.61	0.39	---	---	---	---	---	0.32	0.52	0.69	0.73
Temperature, °C	-27.53	-39.32	-53.03	-57.71	-60.14	-60.97	-63.20	-63.42	-62.58	-53.11	-37.96	-28.04
Wind speed, m/s	4.47	5.40	6.85	7.23	7.25	7.09	7.12	7.28	7.25	6.33	4.87	4.01
Precipitation, mm	---	---	---	---	---	---	---	---	---	---	---	---
Wet days, d	---	---	---	---	---	---	---	---	---	---	---	---

These data were obtained from the NASA Langley Research Center Atmospheric Science Data Center; New et al. 2002
Notes: Help. Change preferences.

Gaisma Planet - Interactive Climate and Environment Imagery Viewer

Amundsen-Scott - permanent station of the US, Antarctica - Basic information

Latitude: -90.0 (90°00'00"S)

Longitude: +139.27 (139°16'12"E)

Base time zone: UTC+12 hours [?]

Local time: 03:00

Country: Antarctica

Continent: Antarctica

Sub-region: Antarctica

Distance: ~14000 km (from your IP)

Altitude: ~2800 m

Amundsen-Scott - permanent station of the US, nearby locations

Change preferences.

▶ Real-time solar terminator on a larger map

Size:

Show and hide
Equator
Prime Meridian
Tropic of Cancer
Tropic of Capricorn
Arctic Circle
Antarctic Circle

↪

Event	Date	Time from
December solstice	2025-12-22 04:03	143d 23h 57min
March equinox	2026-03-21 03:45	55d 0h 15min
June solstice	2025-06-21 14:42	327d 12h 18min
September equinox	2025-09-23 06:19	233d 20h 41min