The new timezone dropdown next to the Date in the Find a Time interface lets you adjust your calendar to someone else’s timezone. This lets you insert times that you are available in a customer-friendly format in the case your customer is in another timezone.
If you are scheduling a meeting from California with someone who lives in New York, simply search for “New York” and select that time zone. Note that the inserted text will also contain the current abbreviation for that timezone.
NOTE: The timezone picker will remember your last selected timezone to aid in scheduling multiple meetings in that timezone.