Cronometro en excel sin que pare al cambiar a otra celda u hoja

I. Hola Rafael, por mi parte no soy usuario habitual de VBA ni de Excel, pero como suelo comentar quisiera trasladarle la información que vi sobre su consulta por si pudiese serle de alguna utilidad mientras le atiende un experto de primera mano. Le ruego disculpe la imprecisión y las molestias de tanta lectura, ánimo.

https://www-teachexcel-com.translate.goog/talk/5942/timer-to-run-when-moving-to-another-sheet?_x_tr_sl=en&_x_tr_tl=es&_x_tr_hl=es&_x_tr_pto=sc

https://www.reddit.com/r/excel/comments/qh05vw/i_have_a_vba_stopwatch_but_i_want_the_timer_to/ 

https://www-mrexcel-com.translate.goog/board/threads/limit-timer-running-macro-to-one-workbook-regardless-of-how-many-workbooks-are-open.1240309/?_x_tr_sl=en&_x_tr_tl=es&_x_tr_hl=es&_x_tr_pto=sc 

https://forum-ozgrid-com.translate.goog/forum/index.php?thread/139097-countdown-timer-in-excel-that-will-run-while-spreadsheet-is-manipulated/&_x_tr_sl=en&_x_tr_tl=es&_x_tr_hl=es&_x_tr_pto=sc 

https://www-excelforum-com.translate.goog/excel-programming-vba-macros/1296169-how-to-keep-running-stopwatch-running-when-using-other-sheets-and-other-workbooks.html?s=986c039f8c88f91d3013535959bd7bb7&_x_tr_sl=en&_x_tr_tl=es&_x_tr_hl=es&_x_tr_pto=sc#post5248815 

https://www-mrexcel-com.translate.goog/board/threads/macro-stops-when-i-edit-cells-why.508842/?_x_tr_sl=en&_x_tr_tl=es&_x_tr_hl=es&_x_tr_pto=sc 

https://www.mrexcel.com/board/threads/problems-with-running-clock-in-worksheet-cell.392397/ 

https://stackoverflow.com/questions/24276108/how-to-have-countdown-timer-in-excel-that-continues-when-inputs-are-made 

https://stackoverflow-com.translate.goog/questions/56273409/excel-macro-stops-running-by-itself-when-i-switch-to-another-excel-file?_x_tr_sl=en&_x_tr_tl=es&_x_tr_hl=es&_x_tr_pto=sc 

https://stackoverflow.com/questions/49564474/create-stopwatch-in-excel-that-runs-while-the-sheet-is-manipulated 

https://www.youtube.com/watch?v=aT2YLSSw7IQ 

https://www.youtube.com/watch?v=jBcSEnv7OOI