Born: 26 Dec 1937

Died: 11 Apr 2020 (82 years)

John Conway
Mathematician

Died 2,001 days ago
aged 30,057 days.

He would have been 32,058 days old today.

He would have celebrated his 253rd Triangular Day on 15 December 2025 at 32,131 days.

These occur when your day age is a triangular number.

Numodays
Sequence Days
Prime Days
Planet Days
Day age
Days ahead
Year age
23 Nov 2025
32,109
365th
Mercury
51
88
16 Dec 2025
32,132
143rd
Venus
74
88
11 May 2026
32,278
3rd
Saturn
220
88
22 May 2026
32,289
47th
Mars
231
88
24 Jan 2030
33,632
20th
Ceres
1,574
92
18 Nov 2032
34,661
8th
Jupiter
2,603
95
12 Oct 2102
60,190
1st
Neptune
28,132
165
08 Jan 2106
61,374
2nd
Uranus
29,316
168
05 Dec 2185
90,560
1st
Pluto
58,502
248
19 Jan 2496
203,830
1st
Eris
171,772
558
Triangular Days
Day age
Year age
252nd
06 Apr 2025
31,878
87
253rd
15 Dec 2025
32,131
87
254th
26 Aug 2026
32,385
88
255th
08 May 2027
32,640
89
256th
19 Jan 2028
32,896
90
257th
02 Oct 2028
33,153
90
258th
17 Jun 2029
33,411
91
259th
03 Mar 2030
33,670
92
260th
18 Nov 2030
33,930
92
261st
06 Aug 2031
34,191
93
262nd
24 Apr 2032
34,453
94
263rd
12 Jan 2033
34,716
95
264th
03 Oct 2033
34,980
95
265th
25 Jun 2034
35,245
96
266th
18 Mar 2035
35,511
97
267th
10 Dec 2035
35,778
97
268th
03 Sep 2036
36,046
98
269th
30 May 2037
36,315
99
270th
24 Feb 2038
36,585
100
271st
22 Nov 2038
36,856
100


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