Looks like the discord bot is actually on gpt4 then even though it incorrectly assumes gpt3:
It looks like you're defining a Daylight Saving Time rule for an Arduino-based clock, and you're noticing the time is off by an hour. The TimeChangeRule you provided includes 0 as the offset value, which might be causing the discrepancy.
The TimeChangeRule generally takes the following structure:
TimeChangeRule rule = { abbreviation, week, dayOfWeek, month, time, offset };
offset is the amount of time (in minutes) to adjust the current time when transitioning between zones. For most Daylight Saving Time changes, it will be 60 minutes, or -60 minutes depending on whether you're entering or exiting DST.
To correct the issue, try updating the offset value to 60:
TimeChangeRule myDST = { "BST", Last, Sun, Mar, 1, 60 };
Make sure you also have a corresponding rule for when the time shifts back to standard time:
TimeChangeRule myStandard = { "GMT", Last, Sun, Oct, 2, 0 };
And don't forget to set the correct time zone and DST rules in the Timezone object:
Timezone localTime(myDST, myStandard);
I hope this helps! If you're experiencing any other issues or have more questions, feel free to ask.