dinate variables.</p>
<p><strong>Time or date dimension:</strong><br />
Coordinate variables representing time must always explicitly include the units attribute; there is no default value.A time coordinate variable will be identifiable by its units, alone.The units attribute will be of character type with the string formatted as per the recommendations in the Unidata udunits package version 1.7.1. The following excerpt from the Udunits documentation explains the time unit encoding by example:</p>
<p>The sp