ARSE
Sat 13 Dec 2025
Hexagonal Days
Your 81st Hexagonal Day is on
Thursday
08 January 2026
when you will be
19,441 days old
Hexagonal Days occur when your day age is a centred hexagonal number.
A centred hexagonal number, or hex number, is a centred figurate number that represents a hexagon with a dot in the centre and all other dots surrounding the centre dot in a hexagonal lattice.
Strictly, a hexagonal number is the number of distinct dots in a pattern of dots consisting of the outlines of regular hexagons with sides up to n dots, when the hexagons are overlaid so that they share one vertex.
We choose to use centred hexagonal numbers to calculate our Hexagonal Days because all (outlined) hexagonal numbers are also triangular numbers and these are already commemorated in our Triangular Days.
Centred Hexagonal
1
7
19
37
61
91
Hexagonal
1
6
15
28
45
66
91
Triangular
1
3
6
10
15
21
28
36
45
55
66
78
91
Next Main Events
Day Age
Event
Days Ahead
Year Age
Ordinal
Day Age
Date
Age
0
0
0
1st
1
0
2nd
7
0
3rd
19
0
4th
37
0
5th
61
0
6th
91
0
7th
127
0
8th
169
0
9th
217
0
10th
271
0
11th
331
0
12th
397
1
13th
469
1
14th
547
1
15th
631
1
16th
721
1
17th
817
2
18th
919
2
19th
1,027
2
20th
1,141
3
21st
1,261
3
22nd
1,387
3
23rd
1,519
4
24th
1,657
4
25th
1,801
4
26th
1,951
5
27th
2,107
5
28th
2,269
6
29th
2,437
6
30th
2,611
7
31st
2,791
7
32nd
2,977
8
33rd
3,169
8
34th
3,367
9
35th
3,571
9
36th
3,781
10
37th
3,997
10
38th
4,219
11
39th
4,447
12
40th
4,681
12
41st
4,921
13
42nd
5,167
14
43rd
5,419
14
44th
5,677
15
45th
5,941
16
46th
6,211
17
47th
6,487
17
48th
6,769
18
49th
7,057
19
50th
7,351
20
51st
7,651
20
52nd
7,957
21
53rd
8,269
22
54th
8,587
23
55th
8,911
24
56th
9,241
25
57th
9,577
26
58th
9,919
27
59th
10,267
28
60th
10,621
29
61st
10,981
30
62nd
11,347
31
63rd
11,719
32
64th
12,097
33
65th
12,481
34
66th
12,871
35
67th
13,267
36
68th
13,669
37
69th
14,077
38
70th
14,491
39
71st
14,911
40
72nd
15,337
41
73rd
15,769
43
74th
16,207
44
75th
16,651
45
76th
17,101
46
77th
17,557
48
78th
18,019
49
79th
18,487
50
80th
18,961
51
81st
19,441
53
1
82nd
19,927
54
83rd
20,419
55
84th
20,917
57
85th
21,421
58
86th
21,931
60
87th
22,447
61
88th
22,969
62
89th
23,497
64
90th
24,031
65
91st
24,571
67
92nd
25,117
68
93rd
25,669
70
94th
26,227
71
95th
26,791
73
96th
27,361
74
97th
27,937
76
98th
28,519
78
99th
29,107
79
100th
29,701
81
101st
30,301
82
102nd
30,907
84
103rd
31,519
86
104th
32,137
87
105th
32,761
89
106th
33,391
91
107th
34,027
93
108th
34,669
94
109th
35,317
96
110th
35,971
98
111th
36,631
100
112th
37,297
102
113th
37,969
103
114th
38,647
105
115th
39,331
107
116th
40,021
109
117th
40,717
111
118th
41,419
113
119th
42,127
115
120th
42,841
117
121st
43,561
119
122nd
44,287
121
123rd
45,019
123
124th
45,757
125
125th
46,501
127
126th
47,251
129
127th
48,007
131
128th
48,769
133
129th
49,537
135
130th
50,311
137