Linked from

The 91 pages that link to Gregorian calendar, each with the reason it gives.

• Julian calendarCompared with: It corrected the seasonal drift inherited from the Julian calendar.

• Japanese era nameCompared with: It numbers years continuously rather than restarting at each Japanese era.

• Islamic calendarCompared with: Its solar years contrast with the Islamic calendar’s shorter lunar years.

• Hebrew calendarCompared with: It tracks the solar year directly rather than coordinating lunar months with it.

• Chinese calendarCompared with: It counts solar years without basing months on lunar phases.

• Roman CalendarCompared with: Its leap-year rule corrected a seasonal error inherited from the Julian reform.

• Synodic monthCompared with: The civil West abandoned lunar month-counting, though Easter computation kept it.

• NengōCompared with: It numbers years continuously, while nengō restart their count at each era change.

• French Republican calendarCompared with: Its restoration replaced the Republican calendar’s months and dating conventions.

• Buddhist calendarCompared with: Its fixed solar year contrasts with Buddhist lunar observance dates.

• Japanese lunisolar calendarCompared with: It became Japan's official civil calendar in place of lunisolar reckoning.

• Liturgical yearCompared with: Its adoption changed the civil dates on which some churches observe feasts.

• Rudolphine TablesCompared with: The tables used the Gregorian calendar for their dates, distinguishing their civil framework from older astronomical tables.

• Hindu calendarCompared with: Its fixed civil date structure differs from calendars whose observances follow tithis.

• EpiphanyCompared with: Its date reckoning explains why some churches’ January 6 falls on January 19 in the civil calendar.

• HatsumōdeCompared with: Japan’s 1873 adoption shifted New Year observance from the lunisolar calendar to January 1.

• Japanese regnal yearsCompared with: Conversions map a Japanese regnal year and date to a Gregorian year.

• Lunar New YearCompared with: Its fixed seasonal structure contrasts with the celebration's date-changing lunisolar basis.

• Persian calendarCompared with: Both are solar calendars, but their year starts and leap-year rules differ.

• Medieval ChurchCompared with: Its later reform shows the church’s continuing role in regulating time, beyond the medieval period.

• Ethiopian calendarCompared with: Its dates and year numbers provide the common comparison for Ethiopian dates.

• NinjuCompared with: Modern year numbers for Ninju are conversions from a later calendar system.

• Pohela BoishakhCompared with: Its January year start contrasts with the Bengali calendar's spring New Year.

• SetsubunCompared with: Its fixed dates contrast with Setsubun’s variable date under the lunisolar calendar.

• Shaka eraCompared with: Converting Shaka dates requires accounting for its different epoch and calendar structure.

• TanabataCompared with: Many modern Tanabata events use July dates instead of the traditional lunar date.

• Tenpyō-kanpōCompared with: Modern dates translate the era’s 749 chronology into a different calendar system.

• TentokuCompared with: Tentoku’s traditional dates require conversion to the Gregorian calendar for modern comparison.

• Hijri eraCompared with: Its solar years show why Hijri dates move earlier across Gregorian seasons.

• JōheiCompared with: Modern summaries map Jōhei’s traditional dates onto Gregorian years.

• Ten'enCompared with: Gregorian years provide the modern dates commonly paired with Ten'en years.

• TenbunCompared with: Tenbun’s year boundaries do not align simply with Gregorian calendar years.

• TengyōCompared with: Modern date equivalents for Tengyō are usually expressed in this calendar.