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 18:43MS 20:22TE          4: 4TS          5:49SR  6:31MR  7:42VT 
 4- 2          18:38SS 19:46MS 20:22TE          4: 3TS          5:46SR  6:49MR  7:40VT 
 4- 3          18:40SS         20:25TE 20:49MS  4: 1TS          5:45SR  7:10MR  7:11VT 
 4- 4          18:42SS         20:27TE 21:53MS  3:58TS          5:43SR  7:33MR  6: 5VT 
 4- 5          18:43SS         20:28TE 22:58MS  3:57TS          5:41SR  8: 2MR  4:58VT 
Pacific Daylight Saving Time (PDT) starts April 6, 2:00 am, The below times are PDT 
 4- 6          19:45SS         21:30TE  1: 1MS  4:55TS          6:40SR  9:37MR  3:53VT 
 4- 7          19:46SS         21:31TE  2: 2MS  4:52TS          6:37SR 10:22MR  2:49VT 
 4- 8          19:46SS         21:32TE  2:58MS  4:49TS          6:35SR 11:16MR  1:51VT 
 4- 9          19:47SS         21:34TE  3:45MS  4:48TS          6:34SR          1: 3VT 
 4-10  12:19MR 19:49SS         21:36TE  4:25MS  4:46TS          6:31SR          0:20VT 
 4-11  13:31MR 19:51SS         21:37TE          4:43TS  4:58MS  6:31SR          0: 0VT 
 4-12  14:48MR 19:52SS         21:38TE          4:41TS  5:25MS  6:28SR          0: 0VT 
 4-13  16: 6MR 19:53SS         21:40TE          4:40TS  5:49MS  6:26SR          0: 0VT 
 4-14  17:27MR 19:55SS         21:43TE          4:37TS  6:13MS  6:25SR          0: 0VT 
 4-15  18:49MR 19:55SS         21:45TE          4:34TS          6:22SR  6:37MS  0: 0VT 
 4-16          19:57SS 20:12MR 21:46TE          4:33TS          6:22SR  7: 1MS  0: 0VT 
 4-17          19:58SS 21:36MR 21:47TE          4:31TS          6:19SR  7:31MS  0: 0VT 
 4-18          20: 0SS         21:49TE 23: 1MR  4:28TS          6:18SR  8: 7MS  1:11VT 
 4-19          20: 1SS         21:51TE  0:22MR  4:26TS          6:16SR  8:52MS  2:30VT 
 4-20          20: 2SS         21:52TE  1:32MR  4:24TS          6:15SR  9:48MS  3:40VT 
 4-21          20: 4SS         21:55TE  2:31MR  4:22TS          6:13SR 10:52MS  4:36VT 
 4-22          20: 4SS         21:57TE  3:16MR  4:19TS          6:10SR          5:19VT 
 4-23  12: 1MS 20: 7SS         21:58TE  3:52MR  4:18TS          6:10SR          5:54VT 
 4-24  13:11MS 20: 7SS         22: 0TE          4:16TS  4:19MR  6: 7SR          6:16VT 
 4-25  14:19MS 20: 8SS         22: 1TE          4:13TS  4:43MR  6: 5SR          6:12VT 
 4-26  15:26MS 20:10SS         22: 4TE          4:11TS  5: 1MR  6: 4SR          6: 7VT 
 4-27  16:31MS 20:12SS         22: 6TE          4: 9TS  5:19MR  6: 3SR          6: 2VT 
 4-28  17:34MS 20:13SS         22: 7TE          4: 7TS  5:37MR  6: 1SR          5:59VT 
 4-29  18:37MS 20:13SS         22: 8TE          4: 4TS  5:55MR  6: 0SR          5:56VT 
 4-30  19:40MS 20:15SS         22:10TE          4: 3TS          5:58SR  6:15MR  5:52VT 

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