1 leap year (366 days) is equal to 0.20054794520548 lustrums
| leap years (366 days) (leap y) | lustrums | 
|---|---|
| 20 | 4.0109589041096 | 
| 30 | 6.0164383561644 | 
| 40 | 8.0219178082192 | 
| 50 | 10.027397260274 | 
| 60 | 12.032876712329 | 
| 70 | 14.038356164384 | 
| 80 | 16.043835616438 | 
| 90 | 18.049315068493 | 
| 100 | 20.054794520548 | 
| 110 | 22.060273972603 | 
To create a customized leap years (366 days) to lustrums conversion table, click on the "Create a customized time conversion table" button.