New Moon Day:

New Moon Day commences at dawn on the day following the moon's conjunction with the sun. For a detailed explanation of the reasoning behind this method, please refer to "New Moon Day: The Dawn After Conjunction."

The Chart:

Below is a chart showing the lunar-solar conjunction dates for 2013-2023. You can confirm the dates and times listed at the USNO's website:

• http://aa.usno.navy.mil/data/docs/MoonPhase.php

(Note: Conjunction is often referred to as the Astronomical "New Moon.")

How to Use this Chart:

1. Determine the difference between your local time and UTC (Coordinated Universal Time). Any of the following can be used.

• http://www.timeanddate.com/worldclock/converter.html
• http://www.thetimenow.com/time-converter.php
• http://www.thetimenow.com/utc/coordinated_universal_time
• http://www.worldtimeserver.com/current_time_in_UTC.aspx
• http://whatismytimezone.com/
• Sample of North American, European, and Australian UTC times (Click to Expand.)

  United States
  Atlantic Daylight Time . . . Subtract 3 hours from UTC
  Atlantic Standard Time . . . Subtract 4 hours from UTC
  Eastern Daylight Time . . . Subtract 4 hours from UTC
  Eastern Standard Time . . . Subtract 5 hours from UTC
  Central Daylight Time . . . Subtract 5 hours from UTC
  Central Standard Time . . . Subtract 6 hours from UTC
  Mountain Daylight Time . . . Subtract 6 hours from UTC
  Mountain Standard Time . . . Subtract 7 hours from UTC
  Pacific Daylight Time . . . Subtract 7 hours from UTC
  Pacific Standard Time . . . Subtract 8 hours from UTC
  Alaska Daylight Time . . . Subtract 8 hours from UTC
  Alaska Standard Time . . . Subtract 9 hours from UTC
  Hawaii-Aleutian Standard Time . . . Subtract 10 hours from UTC
  Samoa Standard Time . . . Subtract 11 hours from UTC

  Europe/Middle East
  Greenwich Mean Time . . . Same as UTC
  British Summer Time . . . Add 1 hour to UTC
  Central European Time . . . Add 1 hour to UTC
  Central European Summer Time . . . Add 2 hours to UTC
  Eastern European Time . . . Add 2 hour to UTC
  Eastern European Summer Time . . . Add 3 hours to UTC
  Charlie Time (Mid East) . . . Add 3 hour to UTC
  Delta Time (Mid East) . . . Add 4 hour to UTC

  Australia
  Western Standard Time . . . Add 8 hours to UTC
  Western Summer Time . . . Add 9 hours to UTC
  Central Standard Time . . . Add 9:30 hours to UTC
  Central Summer Time . . . Add 10:30 hours to UTC
  Eastern Time . . . Add 10 hours to UTC
  Eastern Summer Time . . . Add 11 hours to UTC

  http://earthsky.org/astronomy-essentials/universal-time

2. Find the time of conjunction on the chart below.

3. Convert the time given in UTC to your local time. For example: Conjunction occurs on January 11, 2013 at 19:44 UTC (7:44 PM). If you live in Egypt (UTC +2), the conjunction will occur on January 11 at 21:44 (9:44 PM) local time.

4. Determine when the first dawn ("astronomical twilight") after conjunction will occur.

• http://aa.usno.navy.mil/data/docs/RS_OneYear.php (Important Note: A Biblical day begins a dawn - astronomical twilight, NOT sunrise. You will need to select "astronomical twilight" as the type of table.)
• http://www.timeanddate.com/worldclock/sunrise.html (Important Note: A Biblical day begins a dawn - astronomical twilight, NOT sunrise. You will need to select "twilight/rise/set (sun)" in the Columns section after selecting your location.)
  
  * When looking up the dawn times for your area, DO NOT FORGET to take daylight saving time into consideration when applicable. UTC time is unchanging; it does not make allowances for daylight saving time.

New Moon Day commences at the first dawn after the lunar-solar conjunction.

In the example cited in step #3, New Moon Day will commence at dawn on January 12, 2013 (in Egypt) because conjunction will occur at 9:44 PM on January 11 and the next dawn will occur at 5:28 AM on January 12.