The current year is 2023 according to the Gregorian calendar, which is the most widely used calendar in the world today. This calendar was introduced by Pope Gregory XIII in 1582 to reform the Julian calendar, which was in use at the time and had accumulated an error of approximately 10 days over the centuries.
The Gregorian calendar is a solar calendar, meaning it is based on the length of the Earth’s orbit around the sun. It consists of 365 days in a normal year and 366 days in a leap year, which occurs every four years except for years that are divisible by 100 but not by 400. For example, the year 2000 was a leap year because it is divisible by 400, but the year 1900 was not a leap year because it is divisible by 100 but not by 400.
While the Gregorian calendar is widely used around the world, there are other calendars that are still in use in some cultures and religions. For example, the Islamic calendar is a lunar calendar based on the cycles of the moon and is used to determine the dates of Islamic holidays such as Ramadan and Eid al-Fitr. The Hebrew calendar is also a lunar calendar and is used to determine the dates of Jewish holidays such as Passover and Rosh Hashanah.
So, to answer the question of what year we are really on, it depends on the calendar being used. According to the Gregorian calendar, we are currently in the year 2023. However, according to other calendars, such as the Islamic or Hebrew calendar, the year may be different.