| Classes | |
| class | Actual360 | 
| Actual/360 day count convention.  More... | |
| class | Actual365Fixed | 
| Actual/365 (Fixed) day count convention.  More... | |
| class | Actual365NoLeap | 
| Actual/365 (No Leap) day count convention.  More... | |
| class | ActualActual | 
| Actual/Actual day count.  More... | |
| class | Business252 | 
| Business/252 day count convention.  More... | |
| class | OneDayCounter | 
| 1/1 day count convention  More... | |
| class | SimpleDayCounter | 
| Simple day counter for reproducing theoretical calculations.  More... | |
| class | Thirty360 | 
| 30/360 day count convention  More... | |
| Enumerations | |
| enum | Convention { ISMA, Bond, ISDA, Historical, Actual365, AFB, Euro } | 
| enum | Convention { USA, BondBasis, European, EurobondBasis, Italian } | 
The class QuantLib::DayCounter provides more advanced means of measuring the distance between two dates according to a given market convention, both as number of days of fraction of year. A number of such conventions is contained in the ql/DayCounters directory.