hour() is off when passing in a timestamp, or I'm using it wrong?

[alager]

Startup logs, showing correct operation for central time:
Received time: Sunday, 20-Mar-22 14:50:07.359 UTC
Time is in sync
our Timezone: America/Chicago
Timezone lookup for: America/Chicago ... (round-trip 392 ms) success.
Olson: America/Chicago
Posix: CST6CDT,M3.2.0,M11.1.0
Central Time: Sunday, 20-Mar-2022 09:50:07 CDT

Serial << "now: " << myTZ.now() << mendl;
now: 1647769859

Serial << "storedTime: " << storedTime << mendl;
storedTime: 1647769900

Serial << "timezone: " << myTZ.getTimezoneName( storedTime, LOCAL_TIME ) << mendl;
timezone: CDT

uint8_t hour = myTZ.hourFormat12();
Serial << "hour: " << hour << mendl;
hour: 9 <-- the expected value

uint8_t hourStored = myTZ.hourFormat12( storedTime, LOCAL_TIME );
Serial << "hourStored: " << hourStored << mendl;
hourStored: 2 <-- wrong value. I think it should be either 9, or 4 depending on UTC or local timezone.

uint8_t minute = myTZ.minute();
Serial << "minute: " << minute << mendl;
minute: 50

uint8_t minuteStored = myTZ.minute( storedTime, LOCAL_TIME );
Serial << "minuteStored: " << minuteStored << mendl;
minuteStored: 51

The same behavior happens with both hour() and hourFormat12()

[k5map]

@alager

I'm experiencing the same problem as you with both the hour() and hourFormat12() functions. What is even more confusing is if I output hour using the dateTime() function, the hour is correct. I'm in the CDT timezone and my hour() value is +5 higher than it should be (hour() returns 9 when my local hour is 4). My timezone and DST are set correctly.

[nilton61]

I had the same problem with the day(t) function when passing a timestamp in thew t parameter. I started a new issue on this