Account for 0-based UTCMonth rendering

[mmcfarland]

Overview

The getUTCMonth method returns a month number from 0-11, so it is adjusted for readability in display by adding 1. UTCDate and UTCFullYear are not 0 based and so are left unchanged.

Connects #2142

Demo

Notes

The issue states that both UTCMonth and UTCDate are zero-based, but the documentation says otherwise:

dateObj.getUTCDate()
Return value
An integer number, between 1 and 31, representing the day of the month in the given date according to universal time.

So that was not adjusted.

Testing Instructions

• Bundle and do a ?bigcz=true search for Water around Philadelphia.
• Activate the WDC tab and ensure that there are no 0 based days or months, as illustrated in the connected issue.

[kellyi]

+1. Tested this out and I don't see any months with values of 0 or 13 in the WDC results.