What timezone is Ottawa in?

Ottawa uses the IANA timezone America/Toronto. The UTC offset is UTC-5 in winter (standard time) and UTC-4 during daylight saving time (summer).

Does Ottawa observe daylight saving time?

Yes. Ottawa observes daylight saving time, shifting from UTC-5 (standard time) to UTC-4 in summer.

Ottawa is currently at UTC-4. It is currently observing daylight saving time.

Ottawa is currently 4 hours behind London.

What timezone is Ottawa in?: Ottawa is in Eastern Time (ET), using the IANA timezone America/Toronto. The standard UTC offset is UTC-5 (EST) in winter and UTC-4 (EDT) during daylight saving time.
Does Ottawa observe daylight saving time?: Yes. Ottawa observes daylight saving time, shifting from UTC-5 (standard time) to UTC-4 in summer.
What is the current UTC offset for Ottawa?: Ottawa is currently at UTC-4. It is currently observing daylight saving time.
What is the time difference between Ottawa and London?: Ottawa is currently 4 hours behind London.
What is the time difference between Ottawa and Los Angeles?: Ottawa is currently 3 hours ahead of Los Angeles.
What is the time difference between Ottawa and Tokyo?: Ottawa is currently 13 hours behind Tokyo. Tokyo does not observe daylight saving time, so this gap changes by 1 hour when Ottawa transitions to/from DST.
What is the IANA timezone name for Ottawa?: The IANA timezone database identifier for Ottawa is America/Toronto. Use this string in programming languages and APIs: JavaScript (`new Intl.DateTimeFormat('en-US', { timeZone: 'America/Toronto' })`), Python (`pytz.timezone('America/Toronto')`), or any IANA-compatible library.