Time Based Trigger formatting

I have a question about Time Based Triggers, specially about the entry formatting. I had a trigger set to:

Hour: 6,18
Minute: *
Second *

and this runs on the schedule as shown:

2024 M06 13, Thu 06:00:00 GMT-07:00
2024 M06 13, Thu 18:00:00 GMT-07:00
2024 M06 14, Fri 06:00:00 GMT-07:00
2024 M06 14, Fri 18:00:00 GMT-07:00

if i change that trigger to:

Hour: 6,20
Minute: *
Second *

then the schedule becomes:

2024 M06 13, Wed 20:00:00 GMT-07:00
2024 M06 14, Thu 20:00:00 GMT-07:00
2024 M06 15, Fri 20:00:00 GMT-07:00
2024 M06 16, Sat 20:00:00 GMT-07:00

i've fixed this for now by making the 0600 and 2000 entries two separate triggers, but i'd prefer to avoid that duplication.