NINEHOUND / CALENDAR & CULTURE TOOLS
How long did it really take? Compare two local timestamps on one timeline.
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WORKED EXAMPLE
Gregorian date：2024-11-03 · Clock time：01:30 · Time zone：America/New_York · DST occurrence：0 · End date：2024-11-03 · End time：01:30 · End zone：America/New_York · End occurrence：1
2024-11-03 01:30 (America/New_York) → 2024-11-03 01:30 (America/New_York) · 60 minutes
Resolves each local timestamp separately before subtracting UTC instants. Daylight-saving changes can make clock-face subtraction wrong.
The result shows hours and minutes. The two occurrences of 01:30 in New York on November 3, 2024 are 60 minutes apart. Leap seconds are not modelled.
Explore the calendar here. Find NineHound’s founder, Lao Heshan Daoren / Sun Xingzhe, and the wider I Ching and life-chart project.
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