This listing is for Sun Clock 4.0 for Macintosh, produced by Palo Alto Software. This is a rare time-zone and day/night visualization tool designed for international communication and global scheduling.

Included in this listing:

• Original Sun Clock 4.0 Macintosh 3.5” disk

• Original Sun Clock manual

• Warranty / license sheet

• Original retail box

Condition notes:

The retail box has noticeable wear including edge wear, creases, and corner compression. Bottom flap shows separation. The internal contents are in excellent condition — manual and paperwork are clean and well-preserved. Disk is physically clean.

Features of Sun Clock 4.0:

• Real-time global daylight/night visualization

• Save up to 20 geographic location markers

• Track times across continents

• Useful for business, travel, time-zone coordination

• Works on Macintosh System 6.0 or later

Rarity:

This title is extremely uncommon. Currently, there are no copies listed on and no recent sales recorded. A highly desirable acquisition for vintage Macintosh collectors and world-time software enthusiasts.

This item will be carefully packaged for secure shipping.

Important: These are vintage PC games and may require a period-correct computer to run. Compatibility with modern operating systems is not guaranteed.

Serial numbers, CD keys, or activation codes may have already been used and are not guaranteed to work. Items are sold as collectibles or for physical media replacement purposes only.