Ask Your Question

Is it possible to insert a running clock in a Calc spreadsheet cell? [closed]

asked 2017-11-28 21:15:07 +0200

Super_C gravatar image

updated 2017-11-28 21:16:51 +0200

Is it possible to insert a running clock in a Calc spreadsheet cell? Digital or Analog are both usable.

edit retag flag offensive reopen merge delete

Closed for the following reason the question is answered, right answer was accepted by Alex Kemp
close date 2021-02-07 23:19:15.759553



Hello @Super_C,

Yes in theory, you could make a threaded timer in Python with an interval of 1 second, then update the value in your Calc cell to the current time. ( i have not tried this myself yet ).

librebel gravatar imagelibrebel ( 2017-11-29 00:00:03 +0200 )edit

2 Answers

Sort by » oldest newest most voted

answered 2017-11-29 00:35:46 +0200

m.a.riosv gravatar image

There is a way to do it without macros, that I did a time ago for a question in the Spanish AOo forum.

In a cell introduce =NOW(), give a name to it like 'timer'.
Save the file.
Select the cell where to introduce the clock.
Create a Menu/Sheet/Link to external data, select as data source the own file.
Select the 'timer' in the 'Available Tables/Ranges'
Mark Update interval and fix the seconds you like for update the clock.

Sample timer.ods

image description

edit flag offensive delete link more



+1 awesome trick!

librebel gravatar imagelibrebel ( 2017-11-29 01:04:36 +0200 )edit

One disadvantage is that it stops working if the file is renamed, whereas a macro would not have this problem. However, avoiding macros is an advantage, so it's a tradeoff. Anyway, I did not realize before that this solution can work even with reference to the same file.

Jim K gravatar imageJim K ( 2017-11-29 06:00:22 +0200 )edit

answered 2017-11-29 06:33:28 +0200

Jim K gravatar image

updated 2017-11-29 06:48:31 +0200

As @librebel mentioned, one way to do this is with a threaded Python macro. From my answer at

Assign keep_recalculating_thread to the Open Document event.

import time
from threading import Thread
import uno

def keep_recalculating_thread(action_event=None):
    t = Thread(target = keep_recalculating)

def keep_recalculating():
    oDoc = XSCRIPTCONTEXT.getDocument()
    while hasattr(oDoc, 'calculateAll'):

g_exportedScripts = keep_recalculating_thread,

Instead of calculateAll(), I also tried updating a single cell containing NOW() as recommended here. My hope was that only a single cell would need to be changed.

oCell.setFormula(oCell.getFormula() + " ")

This worked too, but it made all cells with NOW() and RAND()change anyway, so it does not seem to be any more efficient. See

edit flag offensive delete link more

Question Tools

1 follower


Asked: 2017-11-28 21:15:07 +0200

Seen: 2,369 times

Last updated: Nov 29 '17