Romania · March 1919 – October 1924 · 13 days
Where did the 13 days go?
In March 1919 Romania ordered its clocks forward: 1 April old style became 14 April new style. This is the story of the gap - the law, the birthdays, and the Church that kept its own time.
The Julian calendar lagged 13 days behind the seasons. Decree-Law 1053 (March 1919) deleted 1–13 April new style from the calendar - April had 17 days - and the Church followed on 1/14 October 1924, keeping the old Easter.
Chapter I: The Broken Clock
1582–1919
The Julian year is about 11 minutes too long. By 1900 the lag had grown to 13 days, and Romania - still on Julius Caesar's calendar - woke up two weeks behind the seasons.
Pope Gregory XIII's bull Inter gravissimas of 24 February 1582 cut 10 days - Thursday 4 October was followed by Friday 15 October, the weekday cycle untouched - and changed the leap rule: centuries are leap years only if divisible by 400. So 1900 was no leap year in the new style, while the Julian calendar kept its 29 February 1900. That single extra day pushed the gap from 12 to 13 days on 1 March 1900, and there it stayed: every Romanian date before April 1919 needs 13 days added to match the rest of Europe.
The sources' own words
“Thursday, 4 October 1582 was followed by Friday, 15 October 1582 (the cycle of weekdays was not affected).”
EN Wikipedia, Gregorian calendar (quoted)
Meanwhile, three centuries earlier: in October 1582 the Catholic world made the same jump - 10 vanished days instead of 13, because the error was still younger.
Chapter II: The Law
5 March – 14 April 1919
Two earlier reforms had failed - 1864 and 1900. In March 1919 the government stopped asking and decreed: 1 April old style becomes 14 April new style.
Decree-Law no. 1053 was passed on 5 March old style - 18 March new style - 1919 and published in Monitorul Oficial on 6 March: the day after 31 March old style would be called 14 April. April 1919 had 17 days. A century later the National Bank put two names on the centenary coin beside the decree: Ferdinand I and Ion I. C. Bratianu. The decree also unified the country's clocks: Transylvania, coming from Austria-Hungary, already lived on the new style; the Old Kingdom and Bessarabia now joined it.
The law's own words
“Se aproba de Noi adoptarea calendarului Gregorian.” “Ziua de 1 Aprilie 1919 devine 14 Aprilie 1919.” (Romanian original)
Decree-Law 1053/1919, as quoted on the BNR centenary coin (public domain)
Meanwhile in Russia, a year earlier: the 24 January 1918 decree turned Wednesday 31 January into Thursday 14 February, and ordered dual dating - Julian in parentheses - until 1 July 1918.
Chapter III: The Days That Never Were
1–13 April 1919
Thirteen dates vanished: 1 to 13 April 1919 new style never happened. Birthdays recorded old-style still convert - plus 13 days - and the year's Easter fell on a single shared Sunday.
Anyone born “5 April 1919” in a parish register kept old-style was really born on 18 April new style: add 13 days. The week never broke - 1 April old style was a Monday, and so was 14 April new style, the same physical day. And the first Easter after the switch needed no conversion at all: Orthodox reckoning gave 7 April old style, the West kept Sunday 20 April - the same morning, 20 April 1919.
The sources' own words
“Beginning of Great Lent - 03.03.1919, Pascha - 20.04.1919” … “Easter Sunday, 20th April 1919”.
The 1919 Orthodox calendar and the Western Easter table (quoted)
Meanwhile around the Black Sea: Bulgaria had jumped in 1916 - 31 March to 14 April - and Greece would follow in 1923, Wednesday 15 February to Thursday 1 March, for civil matters only.
Chapter IV: The Church That Kept Its Own Time
1919 – 1/14 October 1924
The state switched in April 1919; the altars did not. For five more years Romania prayed on the old calendar, until the autumn of 1924.
After the 1923 Pan-Orthodox Congress in Constantinople, the Holy Synod adopted the corrected calendar in November 1923 and explained it in circulars of June and August 1924. On 1 October old style - 14 October new style - 1924, under Metropolitan Miron Cristea, the feasts of 1–14 October old style moved to 14–27 October new style. Easter alone did not move: the old Paschalia still sets its date today. Those who refused - strongest in Moldavia and around Bucharest - became the stilisti; by 1936 they had built some 40 churches.
The sources' own words
The Synod's circulars of June and August 1924 explained the reform to every priest and believer in the country: the feasts move thirteen days forward, Easter stays on the old reckoning. (paraphrased)
Analele Bucovinei, after the Synod documents (paraphrased)
Meanwhile, the holdouts: the churches of Russia and Serbia never made the switch at all - their Christmas is still 25 December old style, 7 January new style until 2100.
The switch, stop by stop
Eleven stops from the bull of 1582 to the coin of 2019. Step through them one by one.
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15 October 1582
The ten days
Gregory XIII's bull Inter gravissimas, 24 February 1582: Thursday 4 October is followed by Friday 15 October. The weekday cycle is untouched.
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1863
The commission that said yes
Dimitrie Bolintineanu, education minister under Kogalniceanu, convenes government and clergy: the calendar question moves from dogma to science.
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12 January 1864
Yes, together with the state
The commission closes: the clergy agree to adopt the new calendar alongside the state. Protests follow; the reform dies with Cuza's reign in 1866.
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15 March 1900
Haret's report, shelved
Spiru Haret's commission reports to Parliament; the switch is set for 19 July 1900 - then sent back “for elaboration” and delayed again.
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14 April 1916
Bulgaria jumps first
31 March old style is followed by 14 April new style. Romania's southern neighbour shows how it is done.
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14 February 1918
Russia drops thirteen
The Sovnarkom decree of 24 January 1918: Wednesday 31 January becomes Thursday 14 February; dual dating until 1 July 1918.
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5 March 1919
Decree-Law 1053
Passed 5 March old style (18 March new style), in Monitorul Oficial on 6 March: 1 April old style becomes 14 April new style.
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14 April 1919
Our thirteen days
Romania wakes up on 14 April new style. April has 17 days; Monday stays Monday.
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20 April 1919
One Easter, both calendars
Orthodox 7 April old style and Western Easter Sunday meet on the same morning: 20 April 1919.
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14 October 1924
The altars follow
1 October old style becomes 14 October new style in church use; the 1–14 October feasts move to 14–27 October. Easter keeps the old reckoning.
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1 April 2019
The coin
A century on, the National Bank launches a 10 lei silver coin: the decree's two sentences, an astronomical clock, 37 mm of proof silver.
The converter
Any date from 1900 to 1925, either style. The weekday is always shown - it never changes.
“Se aproba de Noi adoptarea calendarului Gregorian.”
“Ziua de 1 Aprilie 1919 devine 14 Aprilie 1919.”
Decree-Law 1053/1919, as quoted on the BNR centenary coin
A century later the National Bank struck the proof: 10 lei of 999 silver, 37 mm, launched 1 April 2019 - the decree's two sentences around an astronomical clock.
The jokes of 1919? We searched the press of the time and found nothing citable: no confirmed anecdote, no verified cartoon. So this page invents none - if you hold a sourced one, it belongs here.
Seven dates, worked out
Server-rendered, converter-verified: the same arithmetic the form above runs.
| Given | Style | Converts to | Weekday | |
|---|---|---|---|---|
| The decree's own day | 1 April 1919 | old style | 14 April 1919 | Monday |
| Grandmother's birthday | 5 April 1919 | old style | 18 April 1919 | Friday |
| Orthodox Easter 1919 | 7 April 1919 | old style | 20 April 1919 | Sunday |
| New Year 1900 | 1 January 1900 | old style | 13 January 1900 | Saturday |
| The extra day | 29 February 1900 | old style | 13 March 1900 | Tuesday |
| The church switch | 1 October 1924 | old style | 14 October 1924 | Tuesday |
| Christmas 1919 | 25 December 1919 | old style | 7 January 1920 | Wednesday |
When were you born?
Five birthdays and feast days, five trips across the gap. Convert each one before the reveal.
Card 1 of 5
Your grandmother says she was born on 5 April 1919. Where do you look in today's calendar?
Parish registers kept old style: add 13 days. 5 April 1919 old style is 18 April new style - check it in the converter.
Card 2 of 5
Orthodox Easter 1919 fell on 7 April old style. What date did Catholics write that same day?
Gauss gives 7 April old style; plus 13 days that is 20 April new style - the Western Easter Sunday of 1919.
Card 3 of 5
1 April 1919 old style was a Monday. What weekday was 14 April new style?
Renumbered days, same mornings: 1 April old style IS 14 April new style, a Monday. The converter always shows the weekday.
Card 4 of 5
A child born in Brasov on 10 April 1919 - what date do you write today?
Former Austro-Hungarian lands already used the Gregorian calendar before 1919, so Brasov dates convert to themselves.
Card 5 of 5
After 1924, when do the stilisti celebrate Christmas?
Old-calendar Christmas stays 25 December Julian - 7 January Gregorian until 2100.
- No date recovered - work the converter and play again.
- One date recovered from the gap.
- Two dates recovered from the gap.
- Three dates recovered - the gap is closing.
- Four dates recovered - one birthday short.
- All five birthdays recovered - the gap is closed.
The switch in six numbers
Every figure below is recomputed from the sources at each build.
- 13 vanished days, 1–13 April 1919
- 17 days April 1919 actually had
- 1,053 the number of the March 1919 decree-law
- 1,582 the year of Gregory XIII's bull
- 1,924 the year the altars followed
- 2,019 the centenary, and the BNR coin
Four sentences to retire gently
Each claim below is checked against the sources listed at the end.
“They stole 13 days of my life!”
The era's joke, answered with astronomy: the Julian year runs about 11 minutes long, so by 1900 the calendar lagged 13 days behind the seasons. Nothing was removed - the days were renumbered, and Monday stayed Monday.
“The whole country switched in 1919.”
The state did - but Transylvania already lived on the new style, and the Church waited until 1/14 October 1924. Even then Easter kept the old reckoning.
“Easter moved with the law.”
It did not: Orthodox Easter is still set by the old Paschalia. Proof on this very page - in 1919 both Easters fell on 20 April new style.
“The weekdays shifted.”
Never: 1 April old style and 14 April new style 1919 are one Monday, the same morning. As in 1582, when Thursday was followed by Friday.
Sources and method
The Broken Clock
- The bull Inter gravissimas of 24 February 1582: Thursday 4 October 1582 followed by Friday 15 October 1582; the weekday cycle unaffected
https://en.wikipedia.org/wiki/Gregorian_calendar - The leap rule: divisible by 4 except centuries not divisible by 400; 1900 was not a leap year
https://en.wikipedia.org/wiki/Gregorian_calendar - By the 20th century the Julian calendar was 13 days behind the Gregorian calendar
https://en.wikipedia.org/wiki/Adoption_of_the_Gregorian_calendar
The Law
- Decree-Law no. 1053, passed on 5/18 March 1919, published in Monitorul Oficial on 6 March; 1 April 1919 old style becomes 14 April new style
https://studia.reviste.ubbcluj.ro/index.php/subbhistoria/article/download/9585/9244/28690 - Before the decree: new style in the former Austro-Hungarian lands, old style in the Old Kingdom and Bessarabia
https://studia.reviste.ubbcluj.ro/index.php/subbhistoria/article/download/9585/9244/28690 - The law's text on the BNR coin: Se aproba de Noi adoptarea calendarului Gregorian. Ziua de 1 Aprilie 1919 devine 14 Aprilie 1919. (public domain)
https://en.numista.com/catalogue/pieces164795.html - The 1863 Bolintineanu commission, the 12 January 1864 conclusions: the clergy accepted the change, alongside the state; the reform never happened
https://analelebucovinei.ro/01_2022/14._kocoj_minoritatea.pdf - The Haret report to Parliament on 15 March 1900, the switch set for 19 July 1900, then postponed
https://analelebucovinei.ro/01_2022/14._kocoj_minoritatea.pdf
The Days That Never Were
- Orthodox Easter 1919: 20.04.1919 new style, i.e. 7 April old style, by Gauss's formula
http://calendar.lenacom.spb.ru/index.en.php?year=1919 - Western Easter 1919: Sunday, 20 April 1919
https://www.drikpanchang.com/calendars/indian/christian-holidays/easter/easter-date-time.html?year=1919 - Bulgaria 1916: 31 March followed by 14 April 1916
https://en.wikipedia.org/wiki/Adoption_of_the_Gregorian_calendar - Russia: the decree of 24 January 1918; Wednesday 31 January followed by Thursday 14 February 1918; dual dating until 1 July 1918
https://en.wikipedia.org/wiki/Adoption_of_the_Gregorian_calendar - Areas formerly Austro-Hungarian already used the Gregorian calendar before 1919
https://secure.ssa.gov/poms.Nsf/lnx/0200307180
The Church That Kept Its Own Time
- After the 1923 Pan-Orthodox Congress in Constantinople, the Romanian Orthodox Church decided to switch; done in October 1924
https://studia.reviste.ubbcluj.ro/index.php/subbhistoria/article/download/9585/9244/28690 - The November 1923 Synod; the June and August 1924 circulars; 1 October old style = 14 October 1924 new style, under Metropolitan Miron Cristea; the 1-14 October old-style feasts moved to 14-27 October new style; Easter kept on the old Paschalia
https://analelebucovinei.ro/01_2022/14._kocoj_minoritatea.pdf - The Old Calendarist movement is born right after the switch to the corrected calendar (1/14 October 1924); strongest in Moldavia and around Bucharest
http://dalvalem.imcu.ro/LUCRARI%20PE%20TEME/PERIODICE/Revista%20Altarul%20Banatului/Altarul-7-9-2016_6.pdf - By 1936, about 40 old-style churches, mostly in Moldavia
https://analelebucovinei.ro/01_2022/14._kocoj_minoritatea.pdf - Old-style Christmas: 25 December Julian = 7 January Gregorian until 2100
https://en.wikipedia.org/wiki/Adoption_of_the_Gregorian_calendar
Game
- The game cards' dates are converter outputs: 5 April old style = 18 April new style; 7 April old style = 20 April new style; 25 December old style = 7 January new style
https://en.wikipedia.org/wiki/Adoption_of_the_Gregorian_calendar
Converter
- The 2019 BNR 10 lei coin: 999 silver, 37 mm, 31.103 g, proof; launched 1 April 2019; astronomical-clock reverse
https://legis.medleg.ro/api/legislation/2019-circulara-circulara-lansarea-13/export?format=pdf - Greece (civil): Wednesday 15 February 1923 followed by Thursday 1 March 1923; the decree covered lay matters only
https://en.wikipedia.org/wiki/Adoption_of_the_Gregorian_calendar
The images
- The Inter gravissimas bull (1582), the Flammarion engraving (1888), Ferdinand I, I. C. Bratianu, Miron Cristea, Gregory XIII - all public domain, via Wikimedia Commons
https://commons.wikimedia.org/