Count business days (Mon–Fri) between two dates, inclusive of the start, exclusive of the end. Optional list of holiday dates to skip.

Validate a UUID and report its version (1-8) and variant. Accepts hyphenated or braced forms.

Convert centimeters to miles (length). Pass ?value=N.

Convert micrometers to meters (length). Pass ?value=N.

Convert micrometers to nanometers (length). Pass ?value=N.

Convert centimeters to inches (length). Pass ?value=N.

Convert millimeters to nanometers (length). Pass ?value=N.

Convert centimeters to feet (length). Pass ?value=N.

Convert millimeters to astronomical units (length). Pass ?value=N.

Convert millimeters to furlongs (length). Pass ?value=N.

Convert centimeters to furlongs (length). Pass ?value=N.

Convert millimeters to meters (length). Pass ?value=N.

Convert millimeters to kilometers (length). Pass ?value=N.

Convert kilometers to light years (length). Pass ?value=N.

Convert millimeters to nautical miles (length). Pass ?value=N.

Convert micrometers to kilometers (length). Pass ?value=N.

Convert centimeters to nanometers (length). Pass ?value=N.

Convert centimeters to meters (length). Pass ?value=N.

Convert centimeters to micrometers (length). Pass ?value=N.

Convert centimeters to yards (length). Pass ?value=N.