---
-title: Times
+layout: default
+title: Editing Clocks
---
-
-
-
-<p>
-
- <dfn>Clocks</dfn> in Ardour are used to display <dfn>time values</dfn> precisely.
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- In many cases, they are also one way to edit (change) time values, and in a few
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- cases, the only way. All clocks share the same basic appearance and functionality,
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- which is described below, but a few clocks serve particularly important roles.
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-</p>
-
-
-
-<h2>Transport Clocks</h2>
-
-
-
-<p>
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- In the transport bar of the editor window there are two clocks (unless you
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- are on a very small screen), that display the current position of the playhead
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- and additional information related to transport control and the timeline. These
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- are called the <dfn>transport clocks</dfn>; the left one is the primary
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- transport clock and the right one is the secondary transport clock.
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- They look like this:
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-</p>
-
-
-
-<img src="/images/new_main_clocks.png" alt="An image of the transport clocks in Ardour" />
-
-
-
-<p>
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- Editing the time in the transport clocks will reposition the playhead in the same
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- way that various other editing operations will.
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-</p>
-
-
-
-<h3>The Big Clock</h3>
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-<p>
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- To show the current playhead position in a big, resizable window, activate
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- <kbd class="menu">Window > Big Clock</kbd>. The big clock is very useful
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- when you need to work away from the screen but still want to see the playhead
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- position clearly (such as when working with a remote control device across
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- a room). The big clock will change its visual appearance to indicate when active
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- recording is taking place. Below on the left is a screenshot showing a fairly
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- large big clock window filling a good part of the display, and on the right,
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- the same clock during active recording.
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-</p>
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-<a href="/images/bigclock.png"><img src="/images/bigclock.png" height="100" alt="an image of the big clock filling a screen" /></a> <a href="/images/bigclock-recording.png"><img src="/images/bigclock-recording.png" height="100" alt="an image of the big clock while recording"
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-/></a>
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-
-
-<h3>The Special Role of the Secondary Transport Clock</h3>
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-<p>
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- On a few occasions Ardour needs to display time values to the user, but there
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- is no obvious way to specify what units to use. The most common case is the big
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- cursor that appears when dragging regions. For this and other similar cases,
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- Ardour will display time using the same units as the secondary clock.
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-</p>
-
-<h4>Why are there two transport clocks?</h4>
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-<p>
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- Having two transport clocks lets you see the playhead position in two different
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- time units without having to change any settings. For example, you can see the
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- playhead position in both timecode units and BBT time.
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-</p>
-
-
-
-<h3>Selection and Punch Clocks</h3>
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-<p>
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- The transport bar also contains a set of 5 clocks that show the current
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- <dfn>selection range</dfn> and <dfn>punch ranges</dfn>. Clicking on the punch
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- range clocks will locate to either the beginning or end of the punch range.
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- Similarly, clicking on the range clocks will locate to either the beginning
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- or end of the current selection. In this screen shot there is no current
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- selection range, so the selection clocks show an "off" state.
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-</p>
-
-
-
-<img src="/images/selectionpunchclocks.png" alt="An image of the the selection and punch clocks in Ardour 3" />
-
-
-
<h2>Clock Modes</h2>
<p>
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Every clock in Ardour has four different, selectable <dfn>clock
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modes</dfn>. Each mode displays time using different units.
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You can change the clock mode by <kbd class="mouse">Right</kbd>-clicking
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on the clock and selecting the desired mode from the menu. Some clocks are
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entirely independent of any other clock's mode; others are linked so that
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changing one changes all clocks in that group. The different modes are:
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</p>
<dl>
-
- <dt>Timecode</dt>
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- <dd>Time is shown as <dfn><abbr title="Society of Motion Picture and Television
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+ <dt>Timecode</dt><dd>Time is shown as <dfn><abbr title="Society of Motion Picture and Television
Engineers">SMPTE</abbr> timecode</dfn> in Hours:Minutes:Seconds:Frames,
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measured from the timecode zero point on the timeline (which may not
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correspond to the session start and/or absolute zero on the timeline,
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depending on configurable timecode offsets).
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The frames value is dictated by either the session <abbr title="Frames Per
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Second">FPS</abbr> setting, or, if slaved to an external timecode master,
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the master's setting. In the transport clocks, the FPS value is shown below
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the time display, along with an indication of the current timecode source
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(<samp>INT</samp> means that Ardour is its own timecode source).</dd>
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- <dt>BBT</dt>
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- <dd>Time is shown as Bars:Beats:Ticks, indicating <dfn>musical time</dfn> measured
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+ <dt>BBT</dt><dd>Time is shown as Bars:Beats:Ticks, indicating <dfn>musical time</dfn> measured
from the start of the session. The transport clocks show the current tempo
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in <abbr title="Beats Per Minute">bpm</abbr> and meter below the time
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display.</dd>
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- <dt>Minutes:Seconds</dt>
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- <dd>Time is shown as Hours:Minutes:Seconds.Milliseconds, measured from the
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+ <dt>Minutes:Seconds</dt><dd>Time is shown as Hours:Minutes:Seconds.Milliseconds, measured from the
absolute start of the timeline (ignoring the session start and any timecode
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offsets).</dd>
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- <dt>Samples</dt>
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- <dd>Time is shown as a <dfn>sample count</dfn> from the absolute start of the timeline
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+ <dt>Samples</dt><dd>Time is shown as a <dfn>sample count</dfn> from the absolute start of the timeline
(ignoring the session start and any timecode offsets). The number of
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samples per second is given by the current sample rate, and in the transport
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clocks, this rate is shown below the time display along with any
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pullup/pulldown adjustment.</dd>
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</dl>
-
-
-<h3>Special Modes for the Transport Clocks</h3>
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-<p>
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- In addition to the time-unit modes mentioned above, each of the two transport
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- clocks (if you work on a small screen, you may only have one) can be
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- independently set to display <dfn>Delta to Edit Point</dfn> in whatever time
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- units its current mode indicates. This setting means that the clock shows the
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- distance between the playhead and the current edit point, and it may show a
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- positive or negative value depending on the temporal order of these two points.
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- The clocks will use a different color when in this mode to avoid confusion.
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-</p>
-
-<p>
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- To switch either (or both!) of the transport clocks into this mode, use
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- <kbd class="menu"> Edit > Preferences > Transport</kbd> and select
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- the relevant checkboxes.
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-</p>
-
-<p>
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- Note that when in <samp>Delta to Edit Point</samp> mode, the transport clocks
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- cannot be edited.
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-</p>
-
-
-
<h2>Changing clock values with the keyboard</h2>
<p>
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New values for the clock can be typed in after clicking on the relevant clock.
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Clicking on the clock will show a thin vertical cursor bar just to the right
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of the next character to be overwritten. Enter time in the same order as the
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current clock mode—if the clock is in Timecode mode, you need to enter
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hours, minutes, seconds, frames. So, to change to a time of 12:15:20:15 you
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would type <kbd class="input">1 2 1 5 2 0 1 5</kbd>. Each number you type will
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appear in a different color, from right to left, overwriting the existing value.
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Mid-edit, after typing <kbd class="input">3 2 2 2</kbd> the clock might look like this:
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</p>
-<img src="/images/clockedit.png" alt="An image of a clock being edited in Ardour 3" />
+<img src="/images/clockedit.png" alt="An image of a clock being edited in Ardour">
<p>
-
To finish the edit, press <kbd>↵</kbd> or <kbd>Tab</kbd>. To exit an
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edit without changing the clock press <kbd>ESC</kbd>. If you mis-type an entry
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so that the new value would be illegal (for example, resulting in more than 30
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frames when Timecode is set to 30 frames per second), the clock will reset at
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the end of the edit, and move the cursor back to the start so that you can
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start over.
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</p>
-
-
-<h3>Avoiding the mouse entirely</h3>
+<h2>Avoiding the mouse entirely</h2>
<p>
-
There is a shortcut available for those who wish to be able to edit the transport
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clocks entirely without the mouse. It can be found in
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<kbd class="menu">Window > Key Bindings > Transport > Focus On
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Clock</kbd>. If bound to a key (<kbd>÷</kbd> on the numerical
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keypad is the
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default), then pressing that key is equivalent to clicking on the primary (left)
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transport clock, and editing can begin immediately.
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</p>
-
-
-<h3>Entering Partial Times</h3>
+<h2>Entering Partial Times</h2>
<p>
-
One detail of the editing design that is not immediately obvious is that it is
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possible to enter part of a full time value. Suppose that the clock is in BBT
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mode, displaying <samp>024|03|0029</samp>, and you want to alter the value to
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the first beat of the current bar. Click on the clock and type
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<kbd class="input">0 1 0 0 0 0</kbd>. Similarly, if it is in Minutes:Seconds
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mode, displaying <samp>02:03:04.456</samp>, and you want to get to exactly 2
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hours, click on the clock and type <kbd class="input">0 0 0 0 0 0 0</kbd> to
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reset the minutes, seconds and milliseconds fields.
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</p>
-
-
-<h3>Entering Delta Times</h3>
+<h2>Entering Delta Times</h2>
<p>
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You can also type values into the clock that are intended as a relative change,
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rather than a new absolute value. Simply end the edit by pressing
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<kbd>+</kbd> or <kbd>-</kbd> (the ones on any keypad will also work). The plus
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key will add the entered value to the current value of the clock, minus will
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subtract it. For example, if the clock is in Samples mode and displays
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<samp>2917839</samp>, you move it back 2000 samples by typing
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<kbd class="input">2 0 0 0</kbd> and <kbd>-</kbd>, rather than ending with
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- Enter or Tab. </p>
-
-
+ Enter or Tab.
+</p>
<h2>Changing clock values with the mouse</h2>
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-
<h3>Using a scroll wheel</h3>
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-
<p>
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Position the mouse pointer over the clock, and move the scroll wheel. Moving
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the scroll wheel up (<kbd class="mouse">⇑</kbd>) increases the value
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shown on the clock, moving it down (<kbd class="mouse">⇑</kbd>)
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decreases it. The step size is equal to the unit of the field
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you are hovering over (seconds, hours, etc.).
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</p>
-
-
<h3>Dragging the mouse</h3>
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-
<p>
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Position the mouse pointer over the clock, press the left mouse button and drag.
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Dragging upwards increases the value shown on the clock, dragging downwards
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decreases it, again with a step size equal to the unit of the field you
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began the drag on.
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</p>