calendar.parser: simplify hms>duration
calendar.parser: simplify hms>duration

AlexIljin/factor,tgunr/factor,tgunr/factor,mrjbq7/factor,bpollack/factor,bpollack/factor,AlexIljin/factor,bpollack/factor,tgunr/factor,tgunr/factor,AlexIljin/factor,factor/factor,AlexIljin/factor,factor/factor,mrjbq7/factor,bpollack/factor,tgunr/factor,tgunr/factor,mrjbq7/factor,factor/factor,factor/factor,AlexIljin/factor,AlexIljin/factor,factor/factor,mrjbq7/factor,mrjbq7/factor,factor/factor,mrjbq7/factor,bpollack/factor,AlexIljin/factor,bpollack/factor,bpollack/factor