In the graph below you see the time zone difference between Central European Summer Time and India Standard Time. Drag the bubble to adjust the time and to see the corresponding time in the other time zone.
Central European Summer Time is the time zone of most central European countries, and the Nordics when observing daylight saving time in the summer, including cities like Paris, Berlin, Stockholm, Amsterdam, Madrid, Rome, Zurich and Warsaw. India Standard Time is the time zone of India, with places like New Delhi, Mumbai, Bangalore, Kolkata and Colombo.
Usually it is preferable to schedule meetings before lunch for the person in CEST and in the afternoon for the person in IST.
CEST is, as the name implies, the time zone observed by Central Europe during the summer months. CEST is +2 hours ahead of UTC. Note that Portugal and the UK are not on CEST but instead observe GMT (or, in the summer BST – British Summer Time) and that Eastern Europe (every country from Finland and South) observe Eastern European Summer Time.
All countries in Western Europe, except Portugal and the UK, observe Central European Summer Time. This includes Germany, Sweden, Italy, Spain, Croatia, Montenegro and Gibraltar to name a few.
The list is long but includes Berlin, Oslo, Madrid, Rome, Tirana, Amsterdam, Paris, Warsaw, Bern, Geneva and Copenhagen.
CEST is the summer time of CET – Central European Time and is observed between the last Sunday of March and the last Sunday of October each year. The rest of the year these countries are on CET.
India, Sri Lanka
Delhi, Colombo, Kolkata and Mumbai
This timezone does not observe daylight saving time so the time difference always stay the same. You however need to pay attention to if the other time zone is observing DST as this will make a difference.
IST can also refer to Irish Standard Time or Israeli Standard time, but most of the times it is India that is being referred to – just make sure to double check this before you send that calendar invite!