A Stacked bar chart should suffice:
Setup data as follows
Name Start End Duration (End - Start)
Fred 1/01/1981 1/06/1985 1612
Bill 1/07/1985 1/11/2000 5602
Joe 1/01/1980 1/12/2001 8005
Jim 1/03/1999 1/01/2000 306
- Plot
Start
and Duration
as a stacked bar chart
- Set the
X-Axis minimum
to the desired start date
- Set the
Fill
Colour of thestart
range to no fill
- Set the
Fill
of individual bars to suit
(example prepared in Excel 2010)