Every Day Counts
Hexagonal Days
 
Age: 13,678 days
Date of birth
Your 69th Hexagonal Day is on
Monday
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
03 Aug 2018
13,689
11
37
09 Aug 2018
13,695
17
37
14 Sep 2018
13,731
53
37
16 Dec 2018
13,824
146
37
19 Feb 2019
13,889
211
38
10 Jun 2019
14,000
322
38
26 Aug 2019
14,077
399
38
01 Oct 2019
14,113
435
38
28 Mar 2023
15,387
1,709
42
19 Dec 2025
16,384
2,706
44
07 Aug 2029
17,711
4,033
48
13 Dec 2041
22,222
8,544
60
26 Jun 2044
23,148
9,470
63
01 Nov 2129
54,321
40,643
148
Ordinal
Day Age
Date
Age
68th
13,669
14 Jul 2018
37
69th
14,077
26 Aug 2019
38
1
70th
14,491
13 Oct 2020
39
71st
14,911
07 Dec 2021
40
72nd
15,337
06 Feb 2023
41
73rd
15,769
13 Apr 2024
43
74th
16,207
25 Jun 2025
44
75th
16,651
12 Sep 2026
45
76th
17,101
06 Dec 2027
46
77th
17,557
06 Mar 2029
48
78th
18,019
11 Jun 2030
49
79th
18,487
22 Sep 2031
50
80th
18,961
08 Jan 2033
51
81st
19,441
03 May 2034
53
82nd
19,927
01 Sep 2035
54
83rd
20,419
05 Jan 2037
55
84th
20,917
18 May 2038
57
85th
21,421
04 Oct 2039
58
86th
21,931
25 Feb 2041
60
87th
22,447
26 Jul 2042
61