Talk:Constructor/@comment-78.83.101.78-20130223203428

Let's make it simple - if you build 2 to lvl 9, you get 7% time reduction.

One day has 24 hours = 1440 minutes - so it makes 100 minutes per day saved for these 7%.

Building those two facilities takes approx 2x162 hours = 19440 minutes. Calculation is approximate, because the time reduction has effect on the build times.

If you save 100 minutes per day, it will take you 194 days before you start benefitting.

Ha-ha-ha.

Make them lvl 14? It takes 2 x 563 hours (47 days) = 67560 minutes.

You save 20%, so it makes 288 minutes per day.

It will take you 234 days before you catch up the time spent.

What I say is - those building have sense, only if you have some accelerators in stock, and you can build them instant.

Percentage of time redution must be (at least) doubled.