Every month of 2099 as a printable table, with public holidays, ISO week numbers and the year's eclipses, moon phases and meteor showers.
2099 has 365 days, starts on a Thursday, is not a leap year, and runs to 53 ISO weeks. It runs from Thursday 1 January 2099 to Thursday 31 December 2099. There are 11 United States federal holidays in 2099, one of which falls at a weekend and is kept on a different day. Worth knowing: 2099 is a 53-week year under ISO 8601, which is the case that breaks payroll and reporting systems written for 52.
Until 2099 begins
26445days
The 2099 calendar, month by month
January
Wk
M
T
W
T
F
S
S
1
1New Year's Day
22 January
3
4
2
5
6
7
8
9
10
11
3
12
13
14
15
16
17
18
4
19Martin Luther King Jr. Day
20
21
22
23
24
25
5
26Australia Day
27
28
29
30
31
February
Wk
M
T
W
T
F
S
S
5
1
6
2St Brigid's Day
3
4
5
6
7
8
7
9
10
11
12
13
14
15
8
16Washington's Birthday
17
18
19
20
21
22
9
23
24
25
26
27
28
March
Wk
M
T
W
T
F
S
S
9
1
10
2
3
4
5
6
7
8
11
9
10
11
12
13
14
15
12
16
17St Patrick's Day
18
19
20
21
22
13
23
24
25
26
27
28
29
14
30
31
April
Wk
M
T
W
T
F
S
S
14
1
2
3
4
5
15
6
7
8
9
10Good Friday
11Easter Saturday
12
16
13Easter Monday
14
15
16
17
18
19
17
20
21
22
23
24
25
26
18
27Anzac Day
28
29
30
May
Wk
M
T
W
T
F
S
S
18
1
2
3
19
4Early May Bank Holiday, May Day
5
6
7
8
9
10
20
11
12
13
14
15
16
17
21
18Victoria Day
19
20
21
22
23
24
22
25Memorial Day, Spring Bank Holiday
26
27
28
29
30
31
June
Wk
M
T
W
T
F
S
S
23
1June Bank Holiday
2
3
4
5
6
7
24
8King's Birthday
9
10
11
12
13
14
25
15
16
17
18
19Juneteenth National Independence Day
20
21
26
22
23
24
25
26
27
28
27
29
30
July
Wk
M
T
W
T
F
S
S
27
1Canada Day
2
3Independence Day
4
5
28
6
7
8
9
10
11
12
29
13Battle of the Boyne (Orangemen’s Day)
14
15
16
17
18
19
30
20
21
22
23
24
25
26
31
27
28
29
30
31
August
Wk
M
T
W
T
F
S
S
31
1
2
32
3Summer Bank Holiday, August Bank Holiday
4
5
6
7
8
9
33
10
11
12
13
14
15
16
34
17
18
19
20
21
22
23
35
24
25
26
27
28
29
30
36
31Summer Bank Holiday
September
Wk
M
T
W
T
F
S
S
36
1
2
3
4
5
6
37
7Labor Day, Labour Day
8
9
10
11
12
13
38
14
15
16
17
18
19
20
39
21
22
23
24
25
26
27
40
28
29
30National Day for Truth and Reconciliation
October
Wk
M
T
W
T
F
S
S
40
1
2
3
4
41
5
6
7
8
9
10
11
42
12Columbus Day, Thanksgiving
13
14
15
16
17
18
43
19
20
21
22
23
24
25
44
26October Bank Holiday
27
28
29
30
31
November
Wk
M
T
W
T
F
S
S
44
1
45
2
3
4
5
6
7
8
46
9
10
11Veterans Day, Remembrance Day
12
13
14
15
47
16
17
18
19
20
21
22
48
23
24
25
26Thanksgiving Day
27
28
29
49
30St Andrew's Day
December
Wk
M
T
W
T
F
S
S
49
1
2
3
4
5
6
50
7
8
9
10
11
12
13
51
14
15
16
17
18
19
20
52
21
22
23
24
25Christmas Day
26
27
53
28Boxing Day, St Stephen's Day
29
30
31
Public holiday in the selected country
Today
Saturday and Sunday
Wk ISO 8601 week number
Weeks start on Monday so that the week number in the left gutter applies to the
whole row. ISO 8601 defines week 1 as the week containing the first Thursday of
the year, which is why 2099 has 53 weeks and why 1 January is not always
in week 1.
Public holidays in 2099
The 11 federal holidays in 5 U.S.C. 6103, with the rules that were actually in force in each year. State and local holidays are not included.
Date
Day
Holiday
Observed
1 January 2099
Thursday
New Year's Day
On the day
19 January 2099
Monday
Martin Luther King Jr. Day
On the day
16 February 2099
Monday
Washington's Birthday (Widely called Presidents’ Day. The federal name is still Washington’s Birthday.)
On the day
25 May 2099
Monday
Memorial Day
On the day
19 June 2099
Friday
Juneteenth National Independence Day
On the day
4 July 2099
Saturday
Independence Day
Friday 3 July 2099
7 September 2099
Monday
Labor Day
On the day
12 October 2099
Monday
Columbus Day (Kept as Indigenous Peoples’ Day in a number of states.)
On the day
11 November 2099
Wednesday
Veterans Day
On the day
26 November 2099
Thursday
Thanksgiving Day
On the day
25 December 2099
Friday
Christmas Day
On the day
Bank holidays in England and Wales under the Banking and Financial Dealings Act 1971, including the one-off royal and jubilee holidays.
Date
Day
Holiday
Observed
1 January 2099
Thursday
New Year's Day
On the day
10 April 2099
Friday
Good Friday
On the day
13 April 2099
Monday
Easter Monday
On the day
4 May 2099
Monday
Early May Bank Holiday
On the day
25 May 2099
Monday
Spring Bank Holiday
On the day
31 August 2099
Monday
Summer Bank Holiday
On the day
25 December 2099
Friday
Christmas Day
On the day
26 December 2099
Saturday
Boxing Day
Monday 28 December 2099
Bank holidays in Scotland. Scotland keeps 2 January and the first Monday in August, and does not keep Easter Monday.
Date
Day
Holiday
Observed
1 January 2099
Thursday
New Year's Day
On the day
2 January 2099
Friday
2 January
On the day
10 April 2099
Friday
Good Friday
On the day
4 May 2099
Monday
Early May Bank Holiday
On the day
25 May 2099
Monday
Spring Bank Holiday
On the day
3 August 2099
Monday
Summer Bank Holiday
On the day
30 November 2099
Monday
St Andrew's Day
On the day
25 December 2099
Friday
Christmas Day
On the day
26 December 2099
Saturday
Boxing Day
Monday 28 December 2099
Bank holidays in Northern Ireland: the England and Wales set plus St Patrick's Day and the Battle of the Boyne.
Date
Day
Holiday
Observed
1 January 2099
Thursday
New Year's Day
On the day
17 March 2099
Tuesday
St Patrick's Day
On the day
10 April 2099
Friday
Good Friday
On the day
13 April 2099
Monday
Easter Monday
On the day
4 May 2099
Monday
Early May Bank Holiday
On the day
25 May 2099
Monday
Spring Bank Holiday
On the day
12 July 2099
Sunday
Battle of the Boyne (Orangemen’s Day)
Monday 13 July 2099
31 August 2099
Monday
Summer Bank Holiday
On the day
25 December 2099
Friday
Christmas Day
On the day
26 December 2099
Saturday
Boxing Day
Monday 28 December 2099
Public holidays in the Republic of Ireland under the Organisation of Working Time Act 1997.
Date
Day
Holiday
Observed
1 January 2099
Thursday
New Year's Day
On the day
2 February 2099
Monday
St Brigid's Day (Ireland’s newest public holiday, first kept in 2023.)
On the day
17 March 2099
Tuesday
St Patrick's Day
On the day
13 April 2099
Monday
Easter Monday
On the day
4 May 2099
Monday
May Day
On the day
1 June 2099
Monday
June Bank Holiday
On the day
3 August 2099
Monday
August Bank Holiday
On the day
26 October 2099
Monday
October Bank Holiday
On the day
25 December 2099
Friday
Christmas Day
On the day
26 December 2099
Saturday
St Stephen's Day
Monday 28 December 2099
Federal statutory holidays. Provincial holidays (Family Day, Civic Holiday, St Jean Baptiste) are not included and vary by province.
Date
Day
Holiday
Observed
1 January 2099
Thursday
New Year's Day
On the day
10 April 2099
Friday
Good Friday
On the day
18 May 2099
Monday
Victoria Day (The Monday before 25 May.)
On the day
1 July 2099
Wednesday
Canada Day
On the day
7 September 2099
Monday
Labour Day
On the day
30 September 2099
Wednesday
National Day for Truth and Reconciliation
On the day
12 October 2099
Monday
Thanksgiving
On the day
11 November 2099
Wednesday
Remembrance Day
On the day
25 December 2099
Friday
Christmas Day
On the day
26 December 2099
Saturday
Boxing Day
Monday 28 December 2099
Public holidays kept nationally. State holidays (Labour Day, show days, Melbourne Cup) vary by state and are not included.
Date
Day
Holiday
Observed
1 January 2099
Thursday
New Year's Day
On the day
26 January 2099
Monday
Australia Day
On the day
10 April 2099
Friday
Good Friday
On the day
11 April 2099
Saturday
Easter Saturday
On the day
13 April 2099
Monday
Easter Monday
On the day
25 April 2099
Saturday
Anzac Day (Substitute days for a weekend Anzac Day vary by state.)
Monday 27 April 2099
8 June 2099
Monday
King's Birthday (Not kept in June in Queensland or Western Australia.)
On the day
25 December 2099
Friday
Christmas Day
On the day
26 December 2099
Saturday
Boxing Day
Monday 28 December 2099
The sky in 2099
Equinoxes, solstices and eclipses are given in UTC, because an eclipse happens
at one instant everywhere. Convert to your own zone before you set an alarm.
Equinoxes and solstices, and the eclipses of 2099.
Date
Time (UTC)
Event
Detail
20 March 2099
07:17
March equinox
Spring begins in the northern hemisphere, autumn in the southern.
21 March 2099
22:51
Annular solar eclipse
Greatest eclipse at 20.0°S 149.0°W, 87% of the Sun covered there.
5 April 2099
08:27
Partial lunar eclipse
90 minutes of partial phase · Visible anywhere the Moon is above the horizon.
20 June 2099
23:41
June solstice
The longest day in the northern hemisphere, the shortest in the southern.
14 September 2099
16:54
Total solar eclipse
Greatest eclipse at 23.3°N 62.8°W, 100% of the Sun covered there.
22 September 2099
16:10
September equinox
Autumn begins in the northern hemisphere, spring in the southern.
29 September 2099
10:33
Penumbral lunar eclipse
Visible anywhere the Moon is above the horizon.
21 December 2099
14:04
December solstice
The shortest day in the northern hemisphere, the longest in the southern.
Full moons
The traditional names are month-based, with two exceptions we compute rather
than assume: the Harvest Moon is the full moon nearest the September equinox,
and a second full moon inside one calendar month is a Blue Moon.
Date
Time (UTC)
Name
Note
7 January 2099
01:50
Wolf Moon
5 February 2099
12:49
Snow Moon
6 March 2099
23:00
Worm Moon
5 April 2099
08:37
Pink Moon
4 May 2099
17:58
Flower Moon
3 June 2099
03:37
Strawberry Moon
2 July 2099
14:21
Buck Moon
1 August 2099
03:00
Sturgeon Moon
30 August 2099
17:56
Blue Moon
The second full moon in August.
29 September 2099
10:46
Harvest Moon
The full moon nearest the September equinox.
29 October 2099
04:20
Hunter's Moon
27 November 2099
21:22
Beaver Moon
27 December 2099
12:58
Cold Moon
All 49 moon phases in 2099
Date
Time (UTC)
Phase
7 January 2099
01:50
Full Moon
13 January 2099
17:26
Last Quarter
21 January 2099
09:07
New Moon
29 January 2099
14:39
First Quarter
5 February 2099
12:49
Full Moon
12 February 2099
05:08
Last Quarter
20 February 2099
04:06
New Moon
28 February 2099
06:13
First Quarter
6 March 2099
23:00
Full Moon
13 March 2099
19:00
Last Quarter
21 March 2099
22:47
New Moon
29 March 2099
17:39
First Quarter
5 April 2099
08:37
Full Moon
12 April 2099
10:48
Last Quarter
20 April 2099
15:30
New Moon
28 April 2099
01:36
First Quarter
4 May 2099
17:58
Full Moon
12 May 2099
04:00
Last Quarter
20 May 2099
05:16
New Moon
27 May 2099
07:16
First Quarter
3 June 2099
03:37
Full Moon
10 June 2099
21:50
Last Quarter
18 June 2099
16:10
New Moon
25 June 2099
12:00
First Quarter
2 July 2099
14:21
Full Moon
10 July 2099
15:14
Last Quarter
18 July 2099
01:01
New Moon
24 July 2099
17:09
First Quarter
1 August 2099
03:00
Full Moon
9 August 2099
07:14
Last Quarter
16 August 2099
08:54
New Moon
23 August 2099
00:01
First Quarter
30 August 2099
17:56
Full Moon
7 September 2099
21:18
Last Quarter
14 September 2099
16:51
New Moon
21 September 2099
09:48
First Quarter
29 September 2099
10:46
Full Moon
7 October 2099
09:21
Last Quarter
14 October 2099
01:32
New Moon
20 October 2099
23:27
First Quarter
29 October 2099
04:20
Full Moon
5 November 2099
19:42
Last Quarter
12 November 2099
11:29
New Moon
19 November 2099
17:17
First Quarter
27 November 2099
21:22
Full Moon
5 December 2099
04:46
Last Quarter
11 December 2099
23:09
New Moon
19 December 2099
14:22
First Quarter
27 December 2099
12:58
Full Moon
Meteor showers
Peak nights drift by about a day between years, because the Earth meets each
stream at a fixed point in its orbit rather than on a fixed date. What
changes the view far more is the Moon, so we compute how much of it is lit
on the peak night of 2099.
Peak
Shower
Rate/hour
Moon lit
Viewing
3 January 2099
Quadrantids (debris from Asteroid 2003 EH1)
110
87%
Bright moon, only the brightest will show
22 April 2099
Lyrids (debris from Comet Thatcher)
18
5%
Dark sky, near new moon
6 May 2099
Eta Aquariids (debris from Halley's Comet)
50
94%
Bright moon, only the brightest will show
30 July 2099
Southern Delta Aquariids (debris from Comet 96P/Machholz)
25
98%
Bright moon, only the brightest will show
12 August 2099
Perseids (debris from Comet Swift-Tuttle)
100
16%
Mostly dark
8 October 2099
Draconids (debris from Comet 21P/Giacobini-Zinner)
10
34%
Mostly dark
21 October 2099
Orionids (debris from Halley's Comet)
20
59%
Moonlight will wash out fainter meteors
5 November 2099
Southern Taurids (debris from Comet Encke)
5
49%
Moonlight will wash out fainter meteors
12 November 2099
Northern Taurids (debris from Comet Encke)
5
0%
Dark sky, near new moon
17 November 2099
Leonids (debris from Comet Tempel-Tuttle)
15
33%
Mostly dark
14 December 2099
Geminids (debris from Asteroid 3200 Phaethon)
150
10%
Dark sky, near new moon
22 December 2099
Ursids (debris from Comet 8P/Tuttle)
10
79%
Bright moon, only the brightest will show
About the year 2099
2099 at a glance
Days
365
Leap year
No
1 January
Thursday
31 December
Thursday
ISO weeks
53
Weekend days
104
2099 is not a leap year, so February has 28 days. It is also a 53-week year under ISO 8601, which happens roughly every five to six years and regularly breaks payroll and reporting systems that assume 52.
Years you can reuse this calendar for
These years start on the same weekday and have the same February, so the grid
above is identical. A 2099 wall calendar hangs again, unchanged, in any of them.
Public holidays computed from statute, cross-checked against
Nager.Date for every year it covers. Astronomical
events computed with astronomy-engine. Week numbers follow ISO 8601. Times are UTC.