The dark sky table shows the Pacific Daylight Saving Time (PDT) times and Pacific Standard Time (PST) times for sunset, astronomical twilight ends, astronomical twilight starts, sunrise, moonrise, moonset and total moon-free, twilight-free viewing time for Portland, Oregon, U.S.A. (Longitude: West 122.68 degrees & Latitude: North 45.52 degrees). Moon-free, twilight-free viewing time is the best time to observer deep sky objects because the moon light and twilight will not interfere with observing these faint objects.

Format:  ##:##SS = Sunset     ##:##TE = Twilight Ends    ##:##MR = Moonrise             
         ##:##SR = Sun Rise   ##:##TS = Twilight Starts  ##:##MS = Moonset
         ##:##VT = Moon-free, Twilight-free Viewing Time                  

Date            Sunset        Twilight Ends    Twilight Starts  Sun Rise  Viewing Time

 4- 1          18:37SS         20:22TE          4: 4TS          5:49SR  8:59MS  3:37VT 
 4- 2          18:40SS         20:23TE  1: 7MR  4: 3TS          5:46SR  9:45MS  4:43VT 
 4- 3          18:40SS         20:25TE  2: 5MR  4: 1TS          5:45SR 10:38MS  5:40VT 
 4- 4          18:42SS         20:27TE  2:54MR  3:58TS          5:43SR 11:37MS  6:26VT 
 4- 5          18:43SS         20:28TE  3:32MR  3:55TS          5:40SR          7: 4VT 
 4- 6  12:40MS 18:45SS         20:30TE          3:54TS  4: 4MR  5:39SR          7:24VT 
Pacific Daylight Saving Time (PDT) starts April 7, 2:00 am, The below times are PDT 
 4- 7  14:43MS 19:46SS         21:31TE          4:52TS  5:31MR  6:37SR          7:20VT 
 4- 8  15:46MS 19:46SS         21:32TE          4:49TS  5:55MR  6:35SR          7:17VT 
 4- 9  16:49MS 19:49SS         21:34TE          4:48TS  6:15MR  6:34SR          7:13VT 
 4-10  17:51MS 19:49SS         21:37TE          4:46TS          6:31SR  6:34MR  7: 8VT 
 4-11  18:52MS 19:51SS         21:37TE          4:43TS          6:30SR  6:54MR  7: 5VT 
 4-12          19:52SS 19:55MS 21:40TE          4:40TS          6:28SR  7:13MR  7: 0VT 
 4-13          19:53SS 21: 0MS 21:42TE          4:39TS          6:26SR  7:35MR  6:56VT 
 4-14          19:55SS         21:43TE 22: 4MS  4:37TS          6:25SR  8: 2MR  6:32VT 
 4-15          19:57SS         21:45TE 23:12MS  4:34TS          6:22SR  8:33MR  5:22VT 
 4-16          19:58SS         21:46TE  0:18MS  4:33TS          6:20SR  9:11MR  4:15VT 
 4-17          19:58SS         21:47TE  1:21MS  4:30TS          6:19SR  9:59MR  3: 9VT 
 4-18          20: 0SS         21:49TE  2:19MS  4:28TS          6:18SR 10:55MR  2: 9VT 
 4-19          20: 1SS         21:52TE  3: 9MS  4:25TS          6:16SR          1:16VT 
 4-20  12: 3MR 20: 2SS         21:53TE  3:50MS  4:24TS          6:13SR          0:33VT 
 4-21  13:18MR 20: 4SS         21:55TE          4:22TS  4:25MS  6:13SR          0: 0VT 
 4-22  14:36MR 20: 6SS         21:57TE          4:19TS  4:55MS  6:10SR          0: 0VT 
 4-23  15:55MR 20: 7SS         21:58TE          4:16TS  5:22MS  6: 9SR          0: 0VT 
 4-24  17:16MR 20: 7SS         22: 1TE          4:15TS  5:48MS  6: 7SR          0: 0VT 
 4-25  18:36MR 20: 8SS         22: 1TE          4:13TS          6: 5SR  6:13MS  0: 0VT 
 4-26  19:57MR 20:10SS         22: 4TE          4:10TS          6: 4SR  6:40MS  0: 0VT 
 4-27          20:12SS 21:17MR 22: 6TE          4: 9TS          6: 3SR  7:11MS  0: 0VT 
 4-28          20:13SS         22: 7TE 22:36MR  4: 7TS          6: 1SR  7:49MS  0:28VT 
 4-29          20:13SS         22:10TE 23:49MR  4: 4TS          6: 0SR  8:33MS  1:39VT 
 4-30          20:16SS         22:10TE  0:54MR  4: 3TS          5:58SR  9:26MS  2:43VT 

This Dark Sky table may print better in landscape orientation. Also, when printing using Netscape check the Black Text option in the File menu, Page Setup... menu in order to print the white text. This Dark Sky table was created by Dave Heider's Dark Sky DOS program. Download the Dark Sky DOS program to create your own unique Dark Sky tables for your location and time of observing.

© 1998-2003 David Haworth