Every Day Counts
Zeisel Days
 
Age: 16,151 days
Date of birth
Your 8th Zeisel Day is on
Thursday
when you will be
24,211 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
06 Nov 2025
16,161
10
44
22 Dec 2025
16,207
56
44
15 Mar 2026
16,290
139
44
17 Jun 2026
16,384
233
44
17 Jun 2026
16,384
233
44
17 Nov 2026
16,537
386
45
27 Mar 2027
16,667
516
45
23 Feb 2028
17,000
849
46
21 Sep 2029
17,576
1,425
48
03 Feb 2030
17,711
1,560
48
11 Jun 2042
22,222
6,071
60
23 Dec 2044
23,148
6,997
63
21 Nov 2047
24,211
8,060
66
30 Apr 2130
54,321
38,170
148
Ordinal
Day Age
Date
Age
1st
105
21 Nov 1981
0
2nd
1,419
27 Jun 1985
3
3rd
1,729
03 May 1986
4
4th
1,885
06 Oct 1986
5
5th
4,505
08 Dec 1993
12
6th
5,719
05 Apr 1997
15
7th
15,387
24 Sep 2023
42
8th
24,211
21 Nov 2047
66
1
9th
25,085
13 Apr 2050
68
10th
27,559
20 Jan 2057
75
11th
31,929
07 Jan 2069
87
12th
54,205
04 Jan 2130
148