Teaching: How do you keep track of time when teaching?

This is something that comes with practice and experience in the seat of the teacher.

You will start to become familiar with how long things take to teach, for example, a challenging asana may need a lot of cues, modifications and variations or pranayama such as Nadi Shodhana may need more time to set up, in order to be able to guide the students clearly. 

Practising your sequence with an imaginary group of students and timing yourself could be helpful in the beginning. This will give you time to make edits to the class before you go and teach that sequence to a real class.

As you become more familiar with your style and pace of teaching, you can begin to determine how much time you wish to dedicate to each section of the class, e.g. opening and intention setting, pranayama, meditation, asana and Savasana. Be sure to always offer adequate time for Savasana.

Wearing a watch or having a little clock nearby when you are teaching is always very useful to keep you on track. It is important that we respect the time of the class, as this is a sign of respect to ourselves as the teacher, to our students and to the space we are hosting the class in. If you are consistent with starting and finishing your classes on time, you will build trust with your students and they will be more likely to return to your classes, knowing that you are holding the space for them, and they can relax, without having to worry about the time.