o  ,    o  ,                                      QEQERTAT                                Astronomical Applications Dept.
Location: W067 00, N77 30                               Civil Twilight for 2015                        U. S. Naval Observatory        
                                                                                                       Washington, DC  20392-5420     
                                                      Zone:  4h West of Greenwich                                                     
                                                                                                                                      
                                                                                                                                      
       Jan.       Feb.       Mar.       Apr.       May        June       July       Aug.       Sept.      Oct.       Nov.       Dec.  
Day Begin End  Begin End  Begin End  Begin End  Begin End  Begin End  Begin End  Begin End  Begin End  Begin End  Begin End  Begin End
     h m  h m   h m  h m   h m  h m   h m  h m   h m  h m   h m  h m   h m  h m   h m  h m   h m  h m   h m  h m   h m  h m   h m  h m
01  ==== ====  1048 1437  0707 1817  0246 2229  //// ////  //// ////  //// ////  //// ////  //// ////  0523 1908  0857 1524  ==== ====
02  ==== ====  1037 1448  0700 1824  0232 2244  //// ////  //// ////  //// ////  //// ////  //// ////  0530 1901  0905 1516  ==== ====
03  ==== ====  1027 1458  0653 1830  0217 2300  //// ////  //// ////  //// ////  //// ////  //// ////  0537 1854  0914 1507  ==== ====
04  ==== ====  1017 1508  0646 1837  0200 2320  //// ////  //// ////  //// ////  //// ////  //// ////  0543 1846  0922 1459  ==== ====
05  ==== ====  1008 1518  0639 1844  0139 2350  //// ////  //// ////  //// ////  //// ////  //// ////  0550 1839  0931 1450  ==== ====
06  ==== ====  0959 1527  0631 1851  0109       //// ////  //// ////  //// ////  //// ////       2337  0557 1832  0940 1441  ==== ====
07  ==== ====  0951 1536  0624 1858  //// ////  //// ////  //// ////  //// ////  //// ////  0118 2311  0603 1825  0950 1432  ==== ====
08  ==== ====  0942 1544  0617 1904  //// ////  //// ////  //// ////  //// ////  //// ////  0143 2252  0610 1818  1000 1422  ==== ====
09  ==== ====  0934 1553  0610 1911  //// ////  //// ////  //// ////  //// ////  //// ////  0202 2235  0617 1811  1010 1411  ==== ====
10  ==== ====  0926 1601  0602 1918  //// ////  //// ////  //// ////  //// ////  //// ////  0217 2221  0623 1803  1022 1400  ==== ====
11  ==== ====  0918 1609  0555 1925  //// ////  //// ////  //// ////  //// ////  //// ////  0231 2208  0630 1756  1034 1348  ==== ====
12  ==== ====  0910 1617  0548 1932  //// ////  //// ////  //// ////  //// ////  //// ////  0244 2156  0637 1749  1048 1335  ==== ====
13  ==== ====  0902 1624  0540 1939  //// ////  //// ////  //// ////  //// ////  //// ////  0255 2144  0643 1742  1104 1319  ==== ====
14  ==== ====  0855 1632  0532 1946  //// ////  //// ////  //// ////  //// ////  //// ////  0306 2133  0650 1735  1125 1258  ==== ====
15  ==== ====  0847 1639  0525 1954  //// ////  //// ////  //// ////  //// ////  //// ////  0316 2123  0656 1728  ==== ====  ==== ====
16  ==== ====  0840 1647  0517 2001  //// ////  //// ////  //// ////  //// ////  //// ////  0326 2113  0703 1721  ==== ====  ==== ====
17  ==== ====  0833 1654  0509 2008  //// ////  //// ////  //// ////  //// ////  //// ////  0335 2103  0710 1714  ==== ====  ==== ====
18  ==== ====  0825 1701  0501 2016  //// ////  //// ////  //// ////  //// ////  //// ////  0344 2054  0716 1707  ==== ====  ==== ====
19  ==== ====  0818 1708  0453 2024  //// ////  //// ////  //// ////  //// ////  //// ////  0353 2045  0723 1700  ==== ====  ==== ====
20  ==== ====  0811 1715  0445 2032  //// ////  //// ////  //// ////  //// ////  //// ////  0401 2036  0730 1653  ==== ====  ==== ====
21  ==== ====  0804 1722  0436 2040  //// ////  //// ////  //// ////  //// ////  //// ////  0409 2027  0737 1646  ==== ====  ==== ====
22  ==== ====  0757 1729  0428 2048  //// ////  //// ////  //// ////  //// ////  //// ////  0417 2019  0744 1639  ==== ====  ==== ====
23  ==== ====  0749 1736  0419 2056  //// ////  //// ////  //// ////  //// ////  //// ////  0425 2011  0751 1632  ==== ====  ==== ====
24  ==== ====  0742 1743  0410 2105  //// ////  //// ////  //// ////  //// ////  //// ////  0433 2002  0758 1624  ==== ====  ==== ====
25  ==== ====  0735 1750  0401 2114  //// ////  //// ////  //// ////  //// ////  //// ////  0440 1954  0805 1617  ==== ====  ==== ====
26  ==== ====  0728 1757  0352 2123  //// ////  //// ////  //// ////  //// ////  //// ////  0448 1947  0812 1610  ==== ====  ==== ====
27  1214 1309  0721 1803  0342 2132  //// ////  //// ////  //// ////  //// ////  //// ////  0455 1939  0819 1602  ==== ====  ==== ====
28  1146 1337  0714 1810  0332 2142  //// ////  //// ////  //// ////  //// ////  //// ////  0502 1931  0826 1555  ==== ====  ==== ====
29  1128 1356             0321 2153  //// ////  //// ////  //// ////  //// ////  //// ////  0509 1923  0834 1547  ==== ====  ==== ====
30  1113 1411             0310 2204  //// ////  //// ////  //// ////  //// ////  //// ////  0516 1916  0842 1540  ==== ====  ==== ====
31  1100 1425             0258 2216             //// ////             //// ////  //// ////             0849 1532             ==== ====

(//// Sun continuously above twilight limit)                                              (==== Sun continuously below twilight limit)

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