Add settings for default clock format (AM/PM vs 24 Hour)

[dgaioshko]

Currently, it is very confusing for the leads from different parts of the world to book meetings in a round-robin calendar link due to confusion between 12 am and 12 pm. We often face the situation that European leads confuse am with pm when it comes to choosing the time and become angry blaming us for booking an inconvenient time slot for them, they are sure that they chose midday. Currently, the format is based on the browser’s settings but many people choose American settings to have a browser in English or it comes by default and they may live in Switzerland or Slovenia, for example.

If you look at the screenshots, would you expect the first option on the top to be midnight? If I were in a rush, I wouldn’t, I would expect the midday option to be the first available.

However, I don’t see anyone booking a time slot at 00:30:

[SVillamizar]

Hello HS,

This is an issue in our company since we work towards the Swedish market where people are used to the 24h clock. It seems unfamiliar to them and they might wonder (even more) if this is just computer-generated from a company from abroad. This is a minor issue but as the saying goes, the glory (and **bleep**) is in the details.

May I ask if this is on your pipeline for features to add in the coming future?

Thank you for an overall great service!

All the best,

Sergio Villamizar