Moon Phase Software

Moon tools

Moon Phase Calculator by date

On 2026-10-05, the Moon is waning crescent at 12:00 (UTC), 28.7% illuminated.

Start with a date. The default reading uses 12:00 UTC, the middle of that calendar day. Add an exact local time and time zone when you need a precise instant.

Calculation input

Use a named time zone so local clock changes are handled.

Physical lunar phase wheel with a photographed Moon and engraved angle scale

Calculated output

Calculated Moon state

2026-10-05T12:00+00:00[UTC] · UTC

Schematic Moon phase: waning, 28.71% illuminated at a phase angle of 295.35 degrees. This represents illuminated fraction only, not sky orientation or observer hemisphere.
Schematic illumination only — not sky orientation or observer hemisphere.

Phase at the selected instant

Waning Crescent

waning

28.71% illuminated

Lunar age
24.356 days
Phase angle
295.3482°
Selected instant
2026-10-05T12:00+00:00[UTC]
UTC instant
2026-10-05T12:00:00.000Z

The phase name changes from Last Quarter to Waning Crescent at about Monday, 5 October 2026 at 06:43:35 UTC on this local date.