MAX customer support working hours vary depending on the market and location. Here’s a short breakdown, together with the supporting languages: EU 9am to 11pm CET, languages: PL, EN, DE, ES, FR, IT, RU, UA US: 9am to 5pm EST, languages: EN, PL BR: 9am to 5pm Brasilia time, languages: PT, EN, ES, PL MY: 9am to 5pm MY time, languages: EN, MY RU: 9am to 5pm Moscow time: languages: RU, EN