Is the clock on the left or on the right side?
The clock is on the left of the image.
    src        edge_attr  dst
0     0   to the left of   14
1     0   to the left of   11
2     0   to the left of   21
3     0   to the left of    1
4     0  to the right of    7
..  ...              ...  ...
80   21   to the left of    3
81   21  to the right of    6
82   21   to the left of    1
83   21  to the right of    2
84   21   to the left of   14

[85 rows x 3 columns]