Born: 09 Apr 1928

Tom Lehrer
Mathematician, musician

35,517 days old

He will celebrate his 267th Triangular Day on 24 March 2026 aged 35,778 days.

These occur when your day age is a triangular number.

Numodays
Sequence Days
Prime Days
Planet Days
Day age
Days ahead
Year age
29 Jul 2025
35,540
404th
Mercury
23
97
29 Jan 2026
35,724
52nd
Mars
207
98
01 Feb 2026
35,727
159th
Venus
210
98
23 Jul 2029
36,995
22nd
Ceres
1,478
101
11 Jan 2035
38,993
9th
Jupiter
3,476
107
06 Feb 2046
43,037
4th
Saturn
7,520
118
23 Jan 2093
60,190
1st
Neptune
24,673
165
21 Apr 2096
61,374
2nd
Uranus
25,857
168
19 Mar 2176
90,560
1st
Pluto
55,043
248
03 May 2486
203,830
1st
Eris
168,313
558
Triangular Days
Day age
Year age
266th
30 Jun 2025
35,511
97
267th
24 Mar 2026
35,778
97
268th
17 Dec 2026
36,046
98
269th
12 Sep 2027
36,315
99
270th
08 Jun 2028
36,585
100
271st
06 Mar 2029
36,856
100
272nd
03 Dec 2029
37,128
101
273rd
02 Sep 2030
37,401
102
274th
03 Jun 2031
37,675
103
275th
04 Mar 2032
37,950
103
276th
05 Dec 2032
38,226
104
277th
08 Sep 2033
38,503
105
278th
13 Jun 2034
38,781
106
279th
19 Mar 2035
39,060
106
280th
24 Dec 2035
39,340
107
281st
30 Sep 2036
39,621
108
282nd
09 Jul 2037
39,903
109
283rd
18 Apr 2038
40,186
110
284th
27 Jan 2039
40,470
110
285th
08 Nov 2039
40,755
111


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