“Woe unto them that call evil good, and good evil; that put darkness for light, and light for darkness; that put bitter for sweet, and sweet for bitter!”
Isaiah 5:20

Calendar of Scripture

Find New Moon Day
where you are

Explore predicted unaided-eye crescent visibility for your region, then see New Moon Day and the four Sabbaths that follow.

Your calendar location

Brisbane, Australia

Regional lunar month

The appointed rhythm

Your four Sabbath days

For your selected location, the four Sabbath days fall on the Gregorian dates shown below.

Global prediction

Where the first crescent may be seen

Each International-Date-Line-to-International-Date-Line span contains exactly one Gregorian day. Day 1 is on the right; Day 2 continues on the left.

Day 2 · endsDay 2 starts · Day 1 endsDay 1 · begins

From sunrise to sunrise

The Scriptural calendar

Each date shows the Moon’s approximate phase at your location.

Midnight to midnight

The Gregorian calendar

New Moon Day and the four Sabbaths are marked within familiar civil dates.

Start each week on

Global date-line comparison

How Scriptural days overlap Gregorian dates

This is a global comparison and does not use your location. The tip of the first pink Zone A region marks where the crescent is first seen; New Moon Day begins at that point on the following Gregorian date. The distance from that point to the Gregorian International Date Line is repeated through every Scriptural day shown below, revealing how the two calendars overlap.

About this prediction

A guide for your region

This calendar uses astronomical calculations and the Odeh crescent-visibility criterion to estimate where the first visible crescent may be seen with the unaided eye. By prediction, only Odeh Zone A begins New Moon Day. If a person actually witnesses the crescent on an earlier Zone B evening, they may apply that sighting to update New Moon Day and the four Sabbaths for their selected region. Actual visibility can be affected by cloud, haze, the local horizon, eyesight and observing conditions.

A personal witnessed-sighting choice remains on that person’s device unless they separately choose to submit an anonymous report. Submitted reports use a generalised map location. Reports in the predicted pink or orange regions are automatically approved when their time and Moon-position checks also pass. Reports outside those conditions are accepted but remain hidden while marked “Unexpected — check carefully” for review.