now 6 hours ahead of New York From 29 October 2023: UTC +1 / Central European Time (CET) The time in Poznan is normally 6 hours ahead of the time in New York, but because these time zones don't share the same start and end times for daylight saving time, the time in Poznan can for a short while be 5 hours ahead of the time in New York.
It became the ‘’’Province of Posen ‘’ in the Kingdom of Prussia in 1848. It became part of the German Empire in 1871. Posen was part of the Free State of Prussia within Weimar Germany from 1918, but was dissolved the following year when most of its territory was ceded to the Second Polish Republic by the Treaty of Versailles.
The Province of Posen (now Poznań), which had come under Polish control during the Greater Poland Uprising, was also to be ceded to Poland.   Pomerelia (Eastern Pomerania), on historical and ethnic grounds, was transferred to Poland so that the new state could have access to the sea and became known as the Polish Corridor . 
The Grand Duchy of Posen (German: Großherzogtum Posen; Polish: Wielkie Księstwo Poznańskie) was part of the Kingdom of Prussia, created from territories annexed by Prussia after the Partitions of Poland, and formally established following the Napoleonic Wars in 1815.
The Province of Posen (German: Provinz Posen; Polish: Prowincja Poznańska) was a province of the Kingdom of Prussia from 1848 to 1920. Posen was established in 1848 following the Greater Poland Uprising as a successor to the Grand Duchy of Posen, which in turn was annexed by Prussia in 1815 from Napoleon's Duchy of Warsaw.
Posen, Kingdom of Prussia (now Poznań, Poland) Died: 2 August 1934 (aged 86) Neudeck, East Prussia, Nazi Germany (now Ogrodzieniec, Poland) Resting place: St. Elizabeth's Church, Marburg: Political party: Independent: Spouse
Posen was the southern of two Prussian administrative regions, or Regierungsbezirke (Polish: rejencja), of the Grand Duchy of Posen (1815–49) and its successor, the Province of Posen (1849–1918).
Posen-West Prussia was established in 1922 as a province of the Free State of Prussia within Weimar Germany, formed from merging three remaining non-contiguous territories of Posen and West Prussia, which had lost the majority of their territory to the Second Polish Republic and Free City of Danzig in the Treaty of Versailles.
Welcome to AMU. Adam Mickiewicz University is the major academic institution in Poznań and one of the top Polish universities. Its reputation is founded on tradition, the outstanding achievements of the faculty and the attractive curriculum.
In the mid-1500s, united Poland was the largest state in Europe and perhaps the continent’s most powerful nation. Yet two and a half centuries later, during the Partitions of Poland (1772–1918), it disappeared, parceled out among the contending empires of Russia, Prussia, and Austria.