"What day is it? Do days exist without calendars? Does time pass when there are no human hands left to wind the clocks?"
     -- Howard Koch, Invasion from Mars, the 1938 radio play based on H. G. Wells' The War of the Worlds

Martian Time Topics by Author

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Mars Calendar
Institute for Advanced Physics
Martian Calendar
Institute for Dynamic Educational Advancement
Martian Calendar Concept Map
Institute for Human and Machine Cognition
Practical Calendar Concept Map
Institute for Human and Machine Cognition
Марсианский календарь
Сергей Л. Исаков