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The HourWorld interactive world clock is a Macintosh product for timing international phone calls, finding sun and moon information, lighting, shadows, and much more. Attractive and functional, PSE products provide a wealth of information in well-integrated, interactive graphical presentations. See the time and lighting conditions anywhere in the world at a glance. A planner for photography "shoots". Look up almanac information about past, present, or future. Explore a variety of locations and dates with simple mouse clicks, and use your printer to create almanac pages for any month and location. There is even a sundial feature to investigate solar lighting at any worldwide location.

A copy of HourWorld 3.5.1 for OS X 10.4 and later is available for download.

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HourWorld Interactive World Clock - Sun & Moon Info at a Glance - Phone Call Planner - What Time Is It Everywhere?

[New!]HourWorld v3.5.1 for OS X 10.4 (Tiger) through 10.10 (Yosemite)
Available as separate Intel and PowerPC Applications

See Products page for details

Update to HourWorld 3.5.1 Recommended for all Users of HourWorld versions 3.x.x

Updating to version 3.5.1 of HourWorld is recommended in order to maintain DST-corrected sunrise and sunset times.  This updated version includes all known DST rules changes for 2013-2017.  The new version should automatically detect your previous registration key from version 3.3.6 or later. 

Included GTS® from Global Time Systems brings a high level of worldwide time accuracy and reliability to HourWorldTM with the current local time at every point on the earth, as adjusted by local political authority as to time zone boundaries and as to implementation of daylight saving time.  HourWorldTM uses GTS® to display the time zone region under the mouse pointer, and to adjust these regions daily for changes that may have occurred.

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Copyright © 2014 by Leighton L. Paul
Last modified: Nov 19, 2014