| cohort | Creates a Cohort Dimension. |
| daysinmonth | Returns the total number of days in the calendar month. |
| fiscalmonth | Fiscal month of the current time step. Must be an integer between 1 and 12. |
| fiscalyear | Fiscal year of the current time step. Must have Fiscal Year toggled on. |
| lastActualDate | Returns the time step index number of the time step of the Last Actual Date setting. Must have the setting toggled on in the time settings of a model, otherwise none will be returned. See lastActualDate for more information. |
| month | Indexes the calendar months from 1-12. Jan = 1, Feb = 2 etc. Useful for seasonality, or any variables that occur on a particular month each year: if month = 4 then X else Y. |
| blank | Enables you to call blank variables in an if statement. E.g. if an employee has no end date: if End Date = blank then X else Y. |
| numtimesteps | Returns the total number of time steps in the model. E.g. useful for dividing a value equally over the length of the model: X / numtimesteps. |
| quarter | Indexes the quarter from 1-4. Can be used for calculating variables that reoccur in a particular quarter, e.g. if quarter = 2 then X else Y. |
| timestep or date | Returns the time step index number of the current time step. E.g. creating a different formula for the first time step of the model: if timestep = 0 then X else Y. |
| today | Returns the time step index number corresponding to the current date. E.g. if you want to set a particular value for today, or months beyond today: if timestep >= today then X else Y. |
| year | Indexes the calendar year. Useful for setting different values/formulas for different years. E.g. if year = 2022 then X else Y. |
