Other days when the Polish flag is often flown on official buildings include: 5 and 9 May – Europe Days (together with the European flag); 15 August – Polish Armed Forces Day (mostly on military premises and at tombs of the Unknown Soldier) 27 September – Polish Underground State Day.
以下日子，机关大楼也会悬挂波兰国旗： 5月5日和5月9日——欧洲日（与欧盟旗帜共同悬挂）； 8月15日——波兰军队日（主要悬挂在军队建筑和无名士兵纪念碑上） 9月27日——波兰流亡政府日。