Commercial Fixed Wing
Flight Crew Commercial
Situational Awareness; Human-Machine Interface; Distraction
Deviation - Altitude Undershoot; Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Issued Advisory / Alert; Air Traffic Control Provided Assistance; Flight Crew Returned To Clearance
Environment - Non Weather Related; Human Factors
Enroute to ZZZ1 we failed to set altimeters to 29.92 when climbing through 18;000 feet. Due to the very high altimeter setting at our departure field; it lead to us inadvertently leveling off 300 feet below our assigned altitude. ATC queried our altimeter setting and we immediately corrected. Inconsistent scheduling and continued ongoing stress from the organization's uncertain future lead to a flight deck environment prime for small errors such as this one.
Air carrier First Officer reported not setting the correct altimeter and leveling off below their assigned altitude.