A thirteen-period calendar by Mark Egli, using ISO week dates. Inspired by the Eastman Kodak calendar.
| Period 1 → | |||||||
|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| W1 |
2025-12-29
2026-W01-1 |
2025-12-30
2026-W01-2 |
2025-12-31
2026-W01-3 |
2026-01-01
2026-W01-4 |
2026-01-02
2026-W01-5 |
2026-01-03
2026-W01-6 |
2026-01-04
2026-W01-7 |
| W2 |
2026-01-05
2026-W02-1 |
2026-01-06
2026-W02-2 |
2026-01-07
2026-W02-3 |
2026-01-08
2026-W02-4 |
2026-01-09
2026-W02-5 |
2026-01-10
2026-W02-6 |
2026-01-11
2026-W02-7 |
| W3 |
2026-01-12
2026-W03-1 |
2026-01-13
2026-W03-2 |
2026-01-14
2026-W03-3 |
2026-01-15
2026-W03-4 |
2026-01-16
2026-W03-5 |
2026-01-17
2026-W03-6 |
2026-01-18
2026-W03-7 |
| W4 |
2026-01-19
2026-W04-1 |
2026-01-20
2026-W04-2 |
2026-01-21
2026-W04-3 |
2026-01-22
2026-W04-4 |
2026-01-23
2026-W04-5 |
2026-01-24
2026-W04-6 |
2026-01-25
2026-W04-7 |
| ← Period 2 → | |||||||
|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| W5 |
2026-01-26
2026-W05-1 |
2026-01-27
2026-W05-2 |
2026-01-28
2026-W05-3 |
2026-01-29
2026-W05-4 |
2026-01-30
2026-W05-5 |
2026-01-31
2026-W05-6 |
2026-02-01
2026-W05-7 |
| W6 |
2026-02-02
2026-W06-1 |
2026-02-03
2026-W06-2 |
2026-02-04
2026-W06-3 |
2026-02-05
2026-W06-4 |
2026-02-06
2026-W06-5 |
2026-02-07
2026-W06-6 |
2026-02-08
2026-W06-7 |
| W7 |
2026-02-09
2026-W07-1 |
2026-02-10
2026-W07-2 |
2026-02-11
2026-W07-3 |
2026-02-12
2026-W07-4 |
2026-02-13
2026-W07-5 |
2026-02-14
2026-W07-6 |
2026-02-15
2026-W07-7 |
| W8 |
2026-02-16
2026-W08-1 |
2026-02-17
2026-W08-2 |
2026-02-18
2026-W08-3 |
2026-02-19
2026-W08-4 |
2026-02-20
2026-W08-5 |
2026-02-21
2026-W08-6 |
2026-02-22
2026-W08-7 |
| ← Period 3 → | |||||||
|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| W9 |
2026-02-23
2026-W09-1 |
2026-02-24
2026-W09-2 |
2026-02-25
2026-W09-3 |
2026-02-26
2026-W09-4 |
2026-02-27
2026-W09-5 |
2026-02-28
2026-W09-6 |
2026-03-01
2026-W09-7 |
| W10 |
2026-03-02
2026-W10-1 |
2026-03-03
2026-W10-2 |
2026-03-04
2026-W10-3 |
2026-03-05
2026-W10-4 |
2026-03-06
2026-W10-5 |
2026-03-07
2026-W10-6 |
2026-03-08
2026-W10-7 |
| W11 |
2026-03-09
2026-W11-1 |
2026-03-10
2026-W11-2 |
2026-03-11
2026-W11-3 |
2026-03-12
2026-W11-4 |
2026-03-13
2026-W11-5 |
2026-03-14
2026-W11-6 |
2026-03-15
2026-W11-7 |
| W12 |
2026-03-16
2026-W12-1 |
2026-03-17
2026-W12-2 |
2026-03-18
2026-W12-3 |
2026-03-19
2026-W12-4 |
2026-03-20
2026-W12-5 |
2026-03-21
2026-W12-6 |
2026-03-22
2026-W12-7 |
| ← Period 4 → | |||||||
|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| W13 |
2026-03-23
2026-W13-1 |
2026-03-24
2026-W13-2 |
2026-03-25
2026-W13-3 |
2026-03-26
2026-W13-4 |
2026-03-27
2026-W13-5 |
2026-03-28
2026-W13-6 |
2026-03-29
2026-W13-7 |
| W14 |
2026-03-30
2026-W14-1 |
2026-03-31
2026-W14-2 |
2026-04-01
2026-W14-3 |
2026-04-02
2026-W14-4 |
2026-04-03
2026-W14-5 |
2026-04-04
2026-W14-6 |
2026-04-05
2026-W14-7 |
| W15 |
2026-04-06
2026-W15-1 |
2026-04-07
2026-W15-2 |
2026-04-08
2026-W15-3 |
2026-04-09
2026-W15-4 |
2026-04-10
2026-W15-5 |
2026-04-11
2026-W15-6 |
2026-04-12
2026-W15-7 |
| W16 |
2026-04-13
2026-W16-1 |
2026-04-14
2026-W16-2 |
2026-04-15
2026-W16-3 |
2026-04-16
2026-W16-4 |
2026-04-17
2026-W16-5 |
2026-04-18
2026-W16-6 |
2026-04-19
2026-W16-7 |
| ← Period 5 → | |||||||
|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| W17 |
2026-04-20
2026-W17-1 |
2026-04-21
2026-W17-2 |
2026-04-22
2026-W17-3 |
2026-04-23
2026-W17-4 |
2026-04-24
2026-W17-5 |
2026-04-25
2026-W17-6 |
2026-04-26
2026-W17-7 |
| W18 |
2026-04-27
2026-W18-1 |
2026-04-28
2026-W18-2 |
2026-04-29
2026-W18-3 |
2026-04-30
2026-W18-4 |
2026-05-01
2026-W18-5 |
2026-05-02
2026-W18-6 |
2026-05-03
2026-W18-7 |
| W19 |
2026-05-04
2026-W19-1 |
2026-05-05
2026-W19-2 |
2026-05-06
2026-W19-3 |
2026-05-07
2026-W19-4 |
2026-05-08
2026-W19-5 |
2026-05-09
2026-W19-6 |
2026-05-10
2026-W19-7 |
| W20 |
2026-05-11
2026-W20-1 |
2026-05-12
2026-W20-2 |
2026-05-13
2026-W20-3 |
2026-05-14
2026-W20-4 |
2026-05-15
2026-W20-5 |
2026-05-16
2026-W20-6 |
2026-05-17
2026-W20-7 |
| ← Period 6 → | |||||||
|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| W21 |
2026-05-18
2026-W21-1 |
2026-05-19
2026-W21-2 |
2026-05-20
2026-W21-3 |
2026-05-21
2026-W21-4 |
2026-05-22
2026-W21-5 |
2026-05-23
2026-W21-6 |
2026-05-24
2026-W21-7 |
| W22 |
2026-05-25
2026-W22-1 |
2026-05-26
2026-W22-2 |
2026-05-27
2026-W22-3 |
2026-05-28
2026-W22-4 |
2026-05-29
2026-W22-5 |
2026-05-30
2026-W22-6 |
2026-05-31
2026-W22-7 |
| W23 |
2026-06-01
2026-W23-1 |
2026-06-02
2026-W23-2 |
2026-06-03
2026-W23-3 |
2026-06-04
2026-W23-4 |
2026-06-05
2026-W23-5 |
2026-06-06
2026-W23-6 |
2026-06-07
2026-W23-7 |
| W24 |
2026-06-08
2026-W24-1 |
2026-06-09
2026-W24-2 |
2026-06-10
2026-W24-3 |
2026-06-11
2026-W24-4 |
2026-06-12
2026-W24-5 |
2026-06-13
2026-W24-6 |
2026-06-14
2026-W24-7 |
| ← Period 7 → | |||||||
|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| W25 |
2026-06-15
2026-W25-1 |
2026-06-16
2026-W25-2 |
2026-06-17
2026-W25-3 |
2026-06-18
2026-W25-4 |
2026-06-19
2026-W25-5 |
2026-06-20
2026-W25-6 |
2026-06-21
2026-W25-7 |
| W26 |
2026-06-22
2026-W26-1 |
2026-06-23
2026-W26-2 |
2026-06-24
2026-W26-3 |
2026-06-25
2026-W26-4 |
2026-06-26
2026-W26-5 |
2026-06-27
2026-W26-6 |
2026-06-28
2026-W26-7 |
| W27 |
2026-06-29
2026-W27-1 |
2026-06-30
2026-W27-2 |
2026-07-01
2026-W27-3 |
2026-07-02
2026-W27-4 |
2026-07-03
2026-W27-5 |
2026-07-04
2026-W27-6 |
2026-07-05
2026-W27-7 |
| W28 |
2026-07-06
2026-W28-1 |
2026-07-07
2026-W28-2 |
2026-07-08
2026-W28-3 |
2026-07-09
2026-W28-4 |
2026-07-10
2026-W28-5 |
2026-07-11
2026-W28-6 |
2026-07-12
2026-W28-7 |
| ← Period 8 → | |||||||
|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| W29 |
2026-07-13
2026-W29-1 |
2026-07-14
2026-W29-2 |
2026-07-15
2026-W29-3 |
2026-07-16
2026-W29-4 |
2026-07-17
2026-W29-5 |
2026-07-18
2026-W29-6 |
2026-07-19
2026-W29-7 |
| W30 |
2026-07-20
2026-W30-1 |
2026-07-21
2026-W30-2 |
2026-07-22
2026-W30-3 |
2026-07-23
2026-W30-4 |
2026-07-24
2026-W30-5 |
2026-07-25
2026-W30-6 |
2026-07-26
2026-W30-7 |
| W31 |
2026-07-27
2026-W31-1 |
2026-07-28
2026-W31-2 |
2026-07-29
2026-W31-3 |
2026-07-30
2026-W31-4 |
2026-07-31
2026-W31-5 |
2026-08-01
2026-W31-6 |
2026-08-02
2026-W31-7 |
| W32 |
2026-08-03
2026-W32-1 |
2026-08-04
2026-W32-2 |
2026-08-05
2026-W32-3 |
2026-08-06
2026-W32-4 |
2026-08-07
2026-W32-5 |
2026-08-08
2026-W32-6 |
2026-08-09
2026-W32-7 |
| ← Period 9 → | |||||||
|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| W33 |
2026-08-10
2026-W33-1 |
2026-08-11
2026-W33-2 |
2026-08-12
2026-W33-3 |
2026-08-13
2026-W33-4 |
2026-08-14
2026-W33-5 |
2026-08-15
2026-W33-6 |
2026-08-16
2026-W33-7 |
| W34 |
2026-08-17
2026-W34-1 |
2026-08-18
2026-W34-2 |
2026-08-19
2026-W34-3 |
2026-08-20
2026-W34-4 |
2026-08-21
2026-W34-5 |
2026-08-22
2026-W34-6 |
2026-08-23
2026-W34-7 |
| W35 |
2026-08-24
2026-W35-1 |
2026-08-25
2026-W35-2 |
2026-08-26
2026-W35-3 |
2026-08-27
2026-W35-4 |
2026-08-28
2026-W35-5 |
2026-08-29
2026-W35-6 |
2026-08-30
2026-W35-7 |
| W36 |
2026-08-31
2026-W36-1 |
2026-09-01
2026-W36-2 |
2026-09-02
2026-W36-3 |
2026-09-03
2026-W36-4 |
2026-09-04
2026-W36-5 |
2026-09-05
2026-W36-6 |
2026-09-06
2026-W36-7 |
| ← Period 10 → | |||||||
|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| W37 |
2026-09-07
2026-W37-1 |
2026-09-08
2026-W37-2 |
2026-09-09
2026-W37-3 |
2026-09-10
2026-W37-4 |
2026-09-11
2026-W37-5 |
2026-09-12
2026-W37-6 |
2026-09-13
2026-W37-7 |
| W38 |
2026-09-14
2026-W38-1 |
2026-09-15
2026-W38-2 |
2026-09-16
2026-W38-3 |
2026-09-17
2026-W38-4 |
2026-09-18
2026-W38-5 |
2026-09-19
2026-W38-6 |
2026-09-20
2026-W38-7 |
| W39 |
2026-09-21
2026-W39-1 |
2026-09-22
2026-W39-2 |
2026-09-23
2026-W39-3 |
2026-09-24
2026-W39-4 |
2026-09-25
2026-W39-5 |
2026-09-26
2026-W39-6 |
2026-09-27
2026-W39-7 |
| W40 |
2026-09-28
2026-W40-1 |
2026-09-29
2026-W40-2 |
2026-09-30
2026-W40-3 |
2026-10-01
2026-W40-4 |
2026-10-02
2026-W40-5 |
2026-10-03
2026-W40-6 |
2026-10-04
2026-W40-7 |
| ← Period 11 → | |||||||
|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| W41 |
2026-10-05
2026-W41-1 |
2026-10-06
2026-W41-2 |
2026-10-07
2026-W41-3 |
2026-10-08
2026-W41-4 |
2026-10-09
2026-W41-5 |
2026-10-10
2026-W41-6 |
2026-10-11
2026-W41-7 |
| W42 |
2026-10-12
2026-W42-1 |
2026-10-13
2026-W42-2 |
2026-10-14
2026-W42-3 |
2026-10-15
2026-W42-4 |
2026-10-16
2026-W42-5 |
2026-10-17
2026-W42-6 |
2026-10-18
2026-W42-7 |
| W43 |
2026-10-19
2026-W43-1 |
2026-10-20
2026-W43-2 |
2026-10-21
2026-W43-3 |
2026-10-22
2026-W43-4 |
2026-10-23
2026-W43-5 |
2026-10-24
2026-W43-6 |
2026-10-25
2026-W43-7 |
| W44 |
2026-10-26
2026-W44-1 |
2026-10-27
2026-W44-2 |
2026-10-28
2026-W44-3 |
2026-10-29
2026-W44-4 |
2026-10-30
2026-W44-5 |
2026-10-31
2026-W44-6 |
2026-11-01
2026-W44-7 |
| ← Period 12 → | |||||||
|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| W45 |
2026-11-02
2026-W45-1 |
2026-11-03
2026-W45-2 |
2026-11-04
2026-W45-3 |
2026-11-05
2026-W45-4 |
2026-11-06
2026-W45-5 |
2026-11-07
2026-W45-6 |
2026-11-08
2026-W45-7 |
| W46 |
2026-11-09
2026-W46-1 |
2026-11-10
2026-W46-2 |
2026-11-11
2026-W46-3 |
2026-11-12
2026-W46-4 |
2026-11-13
2026-W46-5 |
2026-11-14
2026-W46-6 |
2026-11-15
2026-W46-7 |
| W47 |
2026-11-16
2026-W47-1 |
2026-11-17
2026-W47-2 |
2026-11-18
2026-W47-3 |
2026-11-19
2026-W47-4 |
2026-11-20
2026-W47-5 |
2026-11-21
2026-W47-6 |
2026-11-22
2026-W47-7 |
| W48 |
2026-11-23
2026-W48-1 |
2026-11-24
2026-W48-2 |
2026-11-25
2026-W48-3 |
2026-11-26
2026-W48-4 |
2026-11-27
2026-W48-5 |
2026-11-28
2026-W48-6 |
2026-11-29
2026-W48-7 |
| ← Period 13 → | |||||||
|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| W49 |
2026-11-30
2026-W49-1 |
2026-12-01
2026-W49-2 |
2026-12-02
2026-W49-3 |
2026-12-03
2026-W49-4 |
2026-12-04
2026-W49-5 |
2026-12-05
2026-W49-6 |
2026-12-06
2026-W49-7 |
| W50 |
2026-12-07
2026-W50-1 |
2026-12-08
2026-W50-2 |
2026-12-09
2026-W50-3 |
2026-12-10
2026-W50-4 |
2026-12-11
2026-W50-5 |
2026-12-12
2026-W50-6 |
2026-12-13
2026-W50-7 |
| W51 |
2026-12-14
2026-W51-1 |
2026-12-15
2026-W51-2 |
2026-12-16
2026-W51-3 |
2026-12-17
2026-W51-4 |
2026-12-18
2026-W51-5 |
2026-12-19
2026-W51-6 |
2026-12-20
2026-W51-7 |
| W52 |
2026-12-21
2026-W52-1 |
2026-12-22
2026-W52-2 |
2026-12-23
2026-W52-3 |
2026-12-24
2026-W52-4 |
2026-12-25
2026-W52-5 |
2026-12-26
2026-W52-6 |
2026-12-27
2026-W52-7 |
| ← Leap Week | |||||||
|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| W53 |
2026-12-28
2026-W53-1 |
2026-12-29
2026-W53-2 |
2026-12-30
2026-W53-3 |
2026-12-31
2026-W53-4 |
2027-01-01
2026-W53-5 |
2027-01-02
2026-W53-6 |
2027-01-03
2026-W53-7 |