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expression function - days in month [2016/09/14 18:19] |
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| + | ====== Days in Month (Expression Function) ====== | ||
| + | ===== Purpose ===== | ||
| + | The **Days in Month** function (DAYS_IN_MONTH) generates a number that represents how many days are in the month that a given unix timestamp appears in. | ||
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| + | {{:days_in_month_initial.png?direct&600|}} | ||
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| + | ===== Parameters ===== | ||
| + | The **Days in Month** function has two parameters, one of which is required: | ||
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| + | ==== Timestamp ==== | ||
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| + | Allowed Inputs: [[Field|field]] value or a number representing a Unix timestamp. | ||
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| + | There are several sources of Unix timestamps available. For example the stored value of a [[Field Type - Date|date]] or [[Field Type - Date Time| date time]] field is a Unix timestamp. Also When using the advanced interface the output of the [[Expression Function - Date|date]] or [[Expression Function - Date and Time| date time]] expression function is a Unix timestamp. | ||
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| + | ==== Timezone ==== | ||
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| + | Allowed Inputs: [[Field|field]] value or a text string | ||
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| + | The second optional parameter of the **Days in Month** function is a string that represents the timezone. Either use the query builder to choose a field that contains the value or use type a value to enter a number. The value should be based on the tz (timezone) database used by Linux and other Unix system in the form “Area/Location” e.g. "America/New_York". If no value is provided then the current user's timezone is used. | ||
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| + | ===== Output ===== | ||
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| + | The output of the **Days in Month** function is number representing the number of days in the month that the Unix timestamp lands in. | ||
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| + | ===== Example ===== | ||
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| + | For example DAYS_IN_MONTH(946702800) would result in 31. | ||
