Start the clock on the current item (clock-in). This inserts the
CLOCK keyword together with a timestamp. If this is not the
first clocking of this item, the multiple CLOCK lines are wrapped
into a ‘LOGBOOK’ drawer (see also the variable
org-clock-into-drawer). You can also overrule the setting of
this variable for a subtree by setting a ‘CLOCK_INTO_DRAWER’ or
‘LOG_INTO_DRAWER’ property. When called with a C-u
prefix argument, select the task from a list of recently clocked
tasks. With two C-u C-u prefixes, clock into the task
at point and mark it as the default task; the default task is
always be available with letter d when selecting
a clocking task. With three C-u C-u C-u prefixes,
force continuous clocking by starting the clock when the last
While the clock is running, Org shows the current clocking time
in the mode line, along with the title of the task. The clock
time shown is all time ever clocked for this task and its
children. If the task has an effort estimate (see Effort Estimates), the mode line displays the current clocking time
against it75. If the task is a repeating one (see Repeated tasks), show only the time since the last reset of the
task76. You can exercise more control over show time with
the ‘CLOCK_MODELINE_TOTAL’ property. It may have the values
‘current’ to show only the current clocking instance, ‘today’ to
show all time clocked on this tasks today—see also the
all to include all time, or
auto which is the default77. Clicking with
mouse-1 onto the mode line entry pops up a menu with
Stop the clock (clock-out). This inserts another timestamp at
the same location where the clock was last started. It also
directly computes the resulting time in inserts it after the time
range as ‘=>HH:MM’. See the variable
for the possibility to record an additional note together with
the clock-out timestamp78.
Re-clock the last clocked task. With one C-u prefix argument, select the task from the clock history. With two C-u prefixes, force continuous clocking by starting the clock when the last clock stopped.
Update the effort estimate for the current clock task.
Recompute the time interval after changing one of the timestamps. This is only necessary if you edit the timestamps directly. If you change them with S-<cursor> keys, the update is automatic.
On CLOCK log lines, increase/decrease both timestamps so that the clock duration keeps the same value.
On ‘CLOCK’ log lines, increase/decrease the timestamp at point and the one of the previous, or the next, clock timestamp by the same duration. For example, if you hit S-M-UP to increase a clocked-out timestamp by five minutes, then the clocked-in timestamp of the next clock is increased by five minutes.
Changing the TODO state of an item to DONE automatically stops the clock if it is running in this same item.
Cancel the current clock. This is useful if a clock was started by mistake, or if you ended up working on something else.
Jump to the headline of the currently clocked in task. With a C-u prefix argument, select the target task from a list of recently clocked tasks.
Display time summaries for each subtree in the current buffer.
This puts overlays at the end of each headline, showing the total
time recorded under that heading, including the time of any
subheadings. You can use visibility cycling to study the tree,
but the overlays disappear when you change the buffer (see
org-remove-highlights-with-change) or press C-c C-c.
The l key may be used in the agenda (see Weekly/daily agenda) to show which tasks have been worked on or closed during a day.
Important: note that both
can have a global keybinding and do not modify the window disposition.
To add an effort estimate “on the fly”, hook a function doing
The last reset of the task is recorded by the ‘LAST_REPEAT’ property.
See also the variable
The corresponding in-buffer setting is: ‘#+STARTUP: lognoteclock-out’.