Double Time (DT) mod icon
Note: The method used to increase the speed does not increase the pitch of the song.
The Double Time mod is a game modifier that attempts to increase the difficulty of a beatmap by increasing their overall speed (BPM) by 150% (1.5x), reducing the length of the song by 33%, and increasing the approach rate (AR), overall difficulty (OD), and health (HP).
In osu!taiko, the hit leniency is greatly reduced when the Double Time mod is enabled due to osu!taiko's already strict overall difficulty along with its considerably more difficult-to-hit slider ticks. Because of this, the Double Time mod is widely regarded as the hardest mod in osu!taiko and is seldom used.
In osu!catch, there is no overall difficulty to increase. Thus this mod only increases the BPM and AR. As a result, it is only worth a 1.06x multiplier (as opposed to 1.12x multiplier for every other mod).
Although this mod does greatly increase the hyperdash leniency, making fruits require hyperdashes that are near impossible to catch in some cases.
Objectsvalues are colored in a light red with the new values. (Pictured below.)
Objectsvalue is colored a light red even though no change in value is actually made.
HPvalues will have a superscript triangle next to their values indicate a small increase in their values. (Pictured below.)
Screenshot of beatmap values being changed by the Double Time mod