If you installed Timeshift from the AUR package (https://aur.archlinux.org/packages/timeshift/), you'll find that scheduled backups may not work. This is due to cronie being disabled by default.
Check if cronie is present first:
systemctl list-unit-files | grep cronie
| /* | |
| * Great-circle distance computational forumlas | |
| * | |
| * https://en.wikipedia.org/wiki/Great-circle_distance | |
| */ | |
| #ifndef _USE_MATH_DEFINES | |
| #define _USE_MATH_DEFINES | |
| #endif | |
| #include <cmath> |
| from PIL import Image, ImageChops | |
| def trim(im, border): | |
| bg = Image.new(im.mode, im.size, border) | |
| diff = ImageChops.difference(im, bg) | |
| bbox = diff.getbbox() | |
| if bbox: | |
| return im.crop(bbox) | |
| def create_thumbnail(path, size): |