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pace36's avatar
pace36
Copper Contributor
Apr 14, 2019

Time formula please...

Can anyone help me with a time formula.

Left hand columns are example of what I'm trying to achieve.

HW Oban changes daily (manually input) all other locations change automatically through formula.

Thanks!

 

-- Friday 30/3/2018HW(BST) --  -- Friday 30/3/2018HW(BST) --
HW Oban 18:21  HW Oban 18:21
HW Crinan(-0:47)17:34  HW Crinan(-0:47)######
Dorus, C'veckan, Cuan turn at16:04  Dorus, C'veckan, Cuan turn at (-2:17:00)HW Oban######
        
        
Craobh(-1:00)17:21  Craobh(-1:00)######
Easdale(-0:25)17:56  Easdale(-0:25) 
West Loch Tarbert(-3:30)14:51  West Loch Tarbert(-3:30) 
Small Isles, Jura(-3:00)15:21  Small Isles, Jura(-3:00) 
Duart & Arisaig(+0:15)18:36  Duart & Arisaig(+0:15) 
Lochaline(+0:12)18:33  Lochaline(+0:12) 
Tobermory(+0:16)18:37  Tobermory(+0:16) 
Lochalsh/Kyleakin(+0:50)19:11  Lochalsh/Kyleakin(+0:50) 
Canna(+0:40)19:01  Canna(+0:40) 
Mull of Kintyre(-5:00)13:21  Mull of Kintyre(-5:00) 
Portree(+0:55)19:16  Portree(+0:55) 
Bunessan(-0:15)18:06  Bunessan(-0:15) 
DOVER(+5.30)23:51  DOVER(+5.30) 
CLYDE (Inveraray)(-5:30)12:51  CLYDE (Inveraray)(-5:30) 

5 Replies

  • SergeiBaklan's avatar
    SergeiBaklan
    Diamond Contributor

    pace36 , what do you change exactly, 18:21? What are other parameters for the formula, texts like (-0:47) in next row or that is result?

     

    Better if you attach small sample file.

    • pace36's avatar
      pace36
      Copper Contributor

      SergeiBaklan 

      Hi Sergei

      Thanks for replying.

      Columns A-C are example.

      I would input HW time of tide in cell H2 (& height in G2)

      Formula would then place HW Craobh in cell H7 - Time is H2(18:21) less G7 (-1-00) = 17:21

      Same formula for each port listed rows 8-20

      H4 is 2:17hrs before H2 - Different formula

       

      Hope that helps...

       

       

       

      • SergeiBaklan's avatar
        SergeiBaklan
        Diamond Contributor

        pace36 ,

         

        You need to convert your texts with time difference into the time (which is actually decimal number) and taking into account what time is always shall be positive.

         

        That could be like

        =$H$2+IF(MID(G7,2,1)="-",-1,1)*MID(G7,3,LEN(G7)-3)

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