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dayOfMonth() : Extract Day from Date

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Summary

Extract the day of the month component from a datetime value as a number (1-31).

Signature 

dayOfMonth(date)

Parameters

Parameter Type Required Description
date DateTime Yes The datetime to extract the day from

Returns

Type: Number (Integer)

The day of the month as a number from 1 to 31.

Examples

Display Day 

<p>Day: </p>

Data:

doc.Params["model"] = new {
    date = new DateTime(2024, 3, 15)
};

Output:

<p>Day: 15</p>

Custom Date Format 

<p>Date: --</p>

Data:

doc.Params["model"] = new {
    date = new DateTime(2024, 3, 5)
};

Output:

<p>Date: 2024-03-05</p>

Day Range Filter 

<h3>Events in First Half of Month</h3>

  
    <p>: </p>

Data:

doc.Params["model"] = new {
    events = new[] {
        new { date = new DateTime(2024, 3, 10), title = "Team Meeting" },
        new { date = new DateTime(2024, 3, 20), title = "Project Review" },
        new { date = new DateTime(2024, 3, 5), title = "Sprint Planning" }
    }
};

Output:

<h3>Events in First Half of Month</h3>
<p>Mar 10: Team Meeting</p>
<p>Mar 05: Sprint Planning</p>

Payment Schedule 

<p>Next payment due:

  

   15

</p>

Data:

doc.Params["model"] = new {
    today = new DateTime(2024, 3, 10)
};

Output:

<p>Next payment due: March 15</p>

Notes

  • Returns numeric value 1-31
  • Actual maximum depends on the month (28-31)
  • Time component is ignored
  • Useful for custom date formatting and date-based logic
  • For day of week, use dayOfWeek() function
  • For day of year, use dayOfYear() function

See Also