Every Day Counts
Zeisel Days
 
Age: 24,212 days
Date of birth
Your 9th Zeisel Day is on
Friday
when you will be
25,085 days old

A Zeisel Day occurs when your day age is a Zeisel number.

A Zeisel number, named after Helmut Zeisel, is a square-free integer k with at least three prime factors which fall into the pattern

px = apx - 1 + b

where a and b are some integer constants and x is the index number of each prime factor in the factorization, sorted from lowest to highest.

Who would not want to celebrate that?

Remind me, please


Next Main Events
Day Age
Event
Days Ahead
Year Age
01 Jul 2025
24,242
30
66
03 Sep 2025
24,306
94
66
07 Sep 2025
24,310
98
66
03 Oct 2025
24,336
124
66
25 Nov 2025
24,389
177
66
26 May 2026
24,571
359
67
20 Jun 2027
24,961
749
68
29 Jul 2027
25,000
788
68
22 Oct 2027
25,085
873
68
02 Aug 2037
28,657
4,445
78
03 Nov 2048
32,768
8,556
89
22 May 2050
33,333
9,121
91
11 Mar 2054
34,722
10,510
95
08 Nov 2107
54,321
30,109
148
Ordinal
Day Age
Date
Age
1st
105
01 Jun 1959
0
2nd
1,419
05 Jan 1963
3
3rd
1,729
11 Nov 1963
4
4th
1,885
15 Apr 1964
5
5th
4,505
18 Jun 1971
12
6th
5,719
14 Oct 1974
15
7th
15,387
03 Apr 2001
42
8th
24,211
31 May 2025
66
9th
25,085
22 Oct 2027
68
1
10th
27,559
31 Jul 2034
75
11th
31,929
18 Jul 2046
87
12th
54,205
15 Jul 2107
148