Every Day Counts
Hexagonal Days
 
Age: 13,729 days
Date of birth
Your 69th Hexagonal Day is on
Tuesday
when you will be
14,077 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

Remind me, please


Next Main Events
Day Age
Event
Days Ahead
Year Age
22 Sep 2018
13,731
2
37
24 Dec 2018
13,824
95
37
30 Jan 2019
13,861
132
37
27 Feb 2019
13,889
160
38
03 Apr 2019
13,924
195
38
18 Jun 2019
14,000
271
38
03 Sep 2019
14,077
348
38
09 Oct 2019
14,113
384
38
05 Apr 2023
15,387
1,658
42
27 Dec 2025
16,384
2,655
44
15 Aug 2029
17,711
3,982
48
21 Dec 2041
22,222
8,493
60
04 Jul 2044
23,148
9,419
63
09 Nov 2129
54,321
40,592
148
Ordinal
Day Age
Date
Age
68th
13,669
22 Jul 2018
37
69th
14,077
03 Sep 2019
38
1
70th
14,491
21 Oct 2020
39
71st
14,911
15 Dec 2021
40
72nd
15,337
14 Feb 2023
41
73rd
15,769
21 Apr 2024
43
74th
16,207
03 Jul 2025
44
75th
16,651
20 Sep 2026
45
76th
17,101
14 Dec 2027
46
77th
17,557
14 Mar 2029
48
78th
18,019
19 Jun 2030
49
79th
18,487
30 Sep 2031
50
80th
18,961
16 Jan 2033
51
81st
19,441
11 May 2034
53
82nd
19,927
09 Sep 2035
54
83rd
20,419
13 Jan 2037
55
84th
20,917
26 May 2038
57
85th
21,421
12 Oct 2039
58
86th
21,931
05 Mar 2041
60
87th
22,447
03 Aug 2042
61