Does anybody know which would be the most appropriate chart/graph to display work tasks over period of time?

Lets say I have a spread sheet with 4 columns (1.task number; 2.start time; 3. End time; 4. Duration in sec)

I would like to display data similar to Gantt chart. On Y axis - task No., ON X axis - time and the horizontal line would show which task has to be done at what time. But the same task can be repeated later on.

Thank you!

I would make a Gantt chart using cell formulas and CF, with a formula that looks at the start and end times, and a set time per columns, along the lines of 

=IF($B2*1440<=(COLUMN(A1)-1)*15,IF($C2*1440>(COLUMN(A1)-1)*15,"Y","N"),"N")

copied to the right and down, formatted custom with ;;; to hide text and use CF for a fill color when the cell = "Y" - in this example, each column is 15 minutes.

Excel 2010 with free PowerPivot Add-In.
Compatible with Office 2013 Pro Plus.
With real Gantt chart.
http://www.mediafire.com/view/0xajt4fq96coo74/06_11_15.xlsm
Easier way: Use MS Project.