Training Boost Calculator
Troop Training
Enter your troops' unboosted training time and the training speed boost you plan to use.
Adds the Training Capacity city bonus, which increases both batch capacity and base training time by 200%.
Event Window
Events start at 00:00 (UTC) on the selected day. Pick when it begins, and the deadline you want training finished by — picking a start date sets the deadline to 23:59:59 that same day, so adjust it only if you need a tighter window.
Recommended Start
Enter the event start and end above to see your latest safe start time.
Training Completion
Enter your training time and event start above to see when training would stop.
What is the Training Boost Calculator for?
Training speed boosts are temporary, so timing when you activate one matters — start too early and it runs out before your troops finish; start too late and you miss the event. Enter your troops' base training time and the boost you plan to use, and this tool works backward from an event's start time to tell you exactly when to hit the boost.
Example: your troops take 9 hours to train unboosted, you're running a +50% Training Speed boost, and the event starts in two days. Enter 9h under Troop Training and 50% for the boost — the calculator divides base time by 1 + boost/100 (9h ÷ 1.5 = 6h boosted), then counts back from the event start to show the latest moment you can activate the boost and still finish right on time. If your Training Capacity city bonus is active, check that box too — it triples the base training time before the boost is applied, since it also triples how many troops train per batch.
In-game events begin at 00:00 UTC, not your local time zone, so pick the calendar day below and the tool assumes midnight UTC automatically. Only touch the Time field if a specific event starts at a different hour.
Most events just need training done sometime that day, not the exact instant they open, so picking a start date sets your deadline to 23:59:59 that same day — edit it separately if you need a tighter window. The Recommended Start card then tells you where you stand right now: green means starting immediately still finishes within the event's first two hours, yellow means you'll still finish before the deadline but miss that early window, and red means even starting now won't make it — in which case the card shows how much time you need to shave off with speedup items to still finish before the deadline.