Time Code Zoom F6 and F8n. Can I power down and keep timecode sync?

This could be the last time... code video. The Zoom F6 and F8n have highly accurate timecode systems. But when you power down they rely on the real time clock. Which is backed up but not so accurate. I run my F6 and the F8n loaner from soundkit.co.uk through the hoops with the Denecke GR-1 master clock. To see what sort of difference a power down can make. Some handy (non affiliate!) links below timings

02:15 - F6 and F8n Powered On
04:30 - F6 and F8n Powered down and restarted.

https://www.soundkit.co.uk/product/9004462/zoom-f8n-multi-track-field-recorder

http://denecke.com/Products/products.html?tpm=1_3#

https://ambient.de/en/product/lockit/

Видео Time Code Zoom F6 and F8n. Can I power down and keep timecode sync? канала ppm6.tv