1 month
30.44 daysTime · definition
A month is defined here as one twelfth of a Julian year (30.4375 days). Calendar months vary.
Time
Years & lifetimes
A little perspective
1 month lasts about 1.03 times as long as Moon phase synodic cycle.
A month is defined here as one twelfth of a Julian year (30.4375 days). Calendar months vary.
The mean interval between matching lunar phases is about 2,551,443 seconds, or 29.5306 days. Individual lunations vary.
The marked mean synodic month is calibrated. Unmeasured illustration details are representative.
Measurement details
The visual compares time with mean synodic month. The records below preserve each value’s basis and caveats.
Time · definition
A month is defined here as one twelfth of a Julian year (30.4375 days). Calendar months vary.
Mean synodic month · approximate
The mean interval between matching lunar phases is about 2,551,443 seconds, or 29.5306 days. Individual lunations vary.
The labelled spans and stored measurements determine the scale; unmeasured illustration details do not.
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