Every Day Counts
Hexagonal Days
 
Age: 13,879 days
Date of birth
Your 69th Hexagonal Day is on
Thursday
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
28 Dec 2018
13,889
10
38
01 Feb 2019
13,924
45
38
08 Feb 2019
13,931
52
38
18 Apr 2019
14,000
121
38
16 May 2019
14,028
149
38
04 Jul 2019
14,077
198
38
09 Aug 2019
14,113
234
38
03 Feb 2023
15,387
1,508
42
29 Sep 2023
15,625
1,746
42
27 Oct 2025
16,384
2,505
44
15 Jun 2029
17,711
3,832
48
21 Oct 2041
22,222
8,343
60
04 May 2044
23,148
9,269
63
09 Sep 2129
54,321
40,442
148
Ordinal
Day Age
Date
Age
68th
13,669
22 May 2018
37
69th
14,077
04 Jul 2019
38
1
70th
14,491
21 Aug 2020
39
71st
14,911
15 Oct 2021
40
72nd
15,337
15 Dec 2022
41
73rd
15,769
20 Feb 2024
43
74th
16,207
03 May 2025
44
75th
16,651
21 Jul 2026
45
76th
17,101
14 Oct 2027
46
77th
17,557
12 Jan 2029
48
78th
18,019
19 Apr 2030
49
79th
18,487
31 Jul 2031
50
80th
18,961
16 Nov 2032
51
81st
19,441
11 Mar 2034
53
82nd
19,927
10 Jul 2035
54
83rd
20,419
13 Nov 2036
55
84th
20,917
26 Mar 2038
57
85th
21,421
12 Aug 2039
58
86th
21,931
03 Jan 2041
60
87th
22,447
03 Jun 2042
61