Returns a Variant (Integer) containing the specified part of a given date.
Syntax
DatePart(interval, date[,firstdayofweek[, firstweekofyear]])
The DatePart function syntax has these named arguments:
| Part | Description |
|---|---|
| interval | Required. String expression that is the interval of time you want to return. |
| date | Required. Variant (Date) value that you want to evaluate. |
| firstdayofweek | Optional. Specifies the first day of the week. If not specified, Sunday is assumed. |
| firstweekofyear | Optional. Specifies the first week of the year. If not specified, the first week is assumed to be the week in which January 1 occurs. |
Settings
The interval argument has these settings:
| Setting | Description |
|---|---|
| yyyy | Year |
| q | Quarter |
| m | Month |
| y | Day of year |
| d | Day |
| w | Weekday |
| ww | Week |
| h | Hour |
| n | Minute |
| s | Second |
The firstdayofweek argument has these settings:
| Value | Description |
|---|---|
| 0 | Use the NLS API setting. |
| 1 | Sunday (default) |
| 2 | Monday |
| 3 | Tuesday |
| 4 | Wednesday |
| 5 | Thursday |
| 6 | Friday |
| 7 | Saturday |
The firstweekofyear argument has these settings:
| Value | Description |
|---|---|
| 0 | Use the NLS API setting. |
| 1 | Start with week in which January 1 occurs (default). |
| 2 | Start with the first week that has at least four days in the new year. |
| 3 | Start with first full week of the year. |
Remarks
You can use the DatePart function to evaluate a date and return a specific interval of time For example, you might use DatePart to calculate the day of the week or the current hour.
The firstdayofweek argument affects calculations that use the "w" and "ww" interval symbols.
If date is a date literal, the specified year becomes a permanent part of that date. However, if date is enclosed in double quotation marks (" "), and you omit the year, the current year is used each time the date expression is evaluated. This makes it possible to write formulas that can be used in different years.