This extension of time (EOT)  for construction template is very easy to use and helps make the task of managing construction contract extensions and presenting it visually better to the other parties.
 
Projects do not always (or often) go according to the plan. Extensions of time can be granted for a variety of reasons, including adverse weather, external factors, or a delay in taking possession of the site, etc.
 
This extension of time (EOT) template comes pre-built with formulae  to show the delays in the gantt chart along with the plan vs actual compariosn. You can easily add or remove fields as required:
WBS items/ Activities
Planned dates
Actual dates
Delay dates