Date notation in EU
The European Committee for Standardization (CEN) and CENELEC have approved ISO 8601 as EN 28601, now known as EN ISO 8601. This standard is mandatory for all member states of CEN and CENELEC to adopt as their national standard without making any changes to it.
YYYY = four-digit year
MM = two-digit month (01=January, etc.)
DD = two-digit day of month (01 through 31)
ISO 8601 Format
Date input
Support a wide range of date and time formats for input, including colloquial expressions, to avoid errors. A Norwegian user should be allowed to use 6.9, 6.9.23, 06.09, 06/9 or 6-9-2023 as valid input for September 10th 2023 (10.09.2023). The output should be correct.
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Description |
Comments |
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Seperators |
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(/) (-) (.) |
(/) (.) |
(-) (space) |
(.) (space) |
(.) (/)
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(-) (/) |
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International standard format |
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yyyy/mm/dd yyyy-mm-dd yyyy.mm.dd |
dd/mm/yyyy dd.mm.yyyy |
dd-mm-yyyy dd mm yyyy
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dd.mm.yyyy dd mm yyyy |
dd.mm.yy dd/mm/yy |
yyyy-mm-dd yyyy/mm/dd |
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Input format canonical |
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2023/09/10 |
10.09.2023 |
10-09-2023 |
10.9.2023 |
10.09.23 |
230910 |
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Other format |
In a date picker, prioritise inputs above that are more common. At year-end, interpret input as next year if the month differs significantly.
For example, if the current date is 2023-12-31 and the input is 0101, it's more likely to be 2024-01-01 than 2023-01-01. |
Sept September 10 September 10, 2023 Saturday, September 10, 2023 |
10. september 2023 10.sep.2023 10.sep.23 Lørdag, den 10. september 2023 |
zaterdag 10 september 2023 zaterdag 06-09-2023 |
10.syyskuu 2023 |
10 september 2023
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10 september 2023 |
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Current year implicit |
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10/09 10 Sep |
10. sep. 10/09 |
10-9 10 sep |
10.9. |
10/9 10 sep |
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Current year and month implicit |
Support for this is not as common as the inputs mentioned above, and therefore has a lower priority. |
10 |
10 |
10 |
10 |
10 |
10 |
Relative dates
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Context |
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today |
i dag |
vandaag |
tänään |
i dag |
i dag |
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tomorrow |
i morgen |
morgen |
huomenna |
i morgen |
i morgon |
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yesterday |
i går |
gisteren |
eilen |
i går |
i går |
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in x days |
om x dage |
over x dagen |
x päivän kuluttua |
om x dager |
om x dagar |
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in x months |
om x måneder |
over x maanden |
x kuukauden kuluttua |
om x måneder |
om x månader |
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next week |
næste uge |
volgende week |
ensi viikolla |
neste uke |
nästa vecka |
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last week |
sidste uge |
vorige week |
viime viikolla |
forrige uke |
förra veckan |
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x days ago |
for x dage siden |
x dagen geleden |
x päivää sitten |
x dager siden |
x dagar sen |
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x months ago |
for x måneder siden |
x maanden geleden |
x kuukautta sitten |
x måneder siden |
x månader sen |
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next year |
næste år |
volgend jaar |
ensi vuonna |
neste år |
nästa år |
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last year |
sidste år |
vorig jaar |
viime vuonna |
i fjor |
i fjol |
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Months |
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January |
januar |
januari |
tammikuu |
januar |
januari |
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February |
februar |
februari |
helmikuu |
februar |
februari |
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March |
marts |
maart |
maaliskuu |
mars |
mars |
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April |
april |
april |
huhtikuu |
april |
april |
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May |
maj |
mei |
toukokuuta |
mai |
maj |
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June |
juni |
juni |
kesäkuu |
juni |
juni |
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July |
juli |
juli |
heinäkuu |
juli |
juli |
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August |
august |
augustus |
elokuu |
august |
augusti |
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September |
september |
september |
syyskuu |
september |
september |
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October |
oktober |
oktober |
lokakuu |
oktober |
oktober |
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November |
november |
november |
marraskuu |
november |
november |
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December |
december |
december |
joulukuu |
desember |
decembe |
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Days |
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Monday |
mandag |
maandag |
maanantai |
mandag |
måndag |
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Tuesday |
tirsdag |
dinsdag |
tiistai |
tirsdag |
tisdag |
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Wednesday |
onsdag |
woensdag |
keskiviikko |
onsdag |
onsdag |
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Thursday |
torsdag |
donderdag |
torstai |
torsdag |
torsdag |
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Friday |
fredag |
vrijdag |
perjantai |
fredag |
fredag |
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Saturday |
lørdag |
zaterdag |
lauantai |
lørdag |
lördag |
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Sunday |
søndag |
zondag |
sunnuntai |
søndag |
söndag |
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Date terms |
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day/days |
dag/dage |
dag/dagen |
päivä/päivä |
dag/dager |
dag/dagar |
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week/weeks |
uge/uger |
week/weken |
viikko/viikkoa |
uke/uker |
vecka/veckor |
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year/years |
år/år |
jaar/jaren |
vuosi/vuotta |
år/år |
år/år |
Abbreviations
Use initial case and uppercase only in English. No three-letter abbreviations for short-month names in Finland.
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Months |
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Jan |
jan. |
jan |
tammi |
jan. |
jan |
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Feb |
feb. |
feb |
helmi |
feb. |
feb |
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Mar |
mar. |
mrt |
maalis |
mar. |
mar |
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Apr |
apr. |
apr |
huhti |
apr. |
apr |
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May |
maj |
mei |
touku |
mai |
maj |
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Jun |
juni |
jun |
kesä |
jun. |
jun |
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Jul |
juli |
jul |
heinä |
jul. |
jul |
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Aug |
aug. |
aug |
elo |
aug. |
aug |
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Sep |
sept. |
sep |
syys |
sep. |
sep |
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Oct |
okt. |
okt |
loka |
okt. |
okt |
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Nov |
nov. |
nov |
marras |
nov. |
nov |
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Dec |
dec. |
dec |
joulu |
des. |
dec |
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Days |
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Mon |
man. |
ma |
ma |
man. |
mån |
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Tue |
tirs. |
di |
ti |
tir. |
tis |
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Wed |
ons. |
wo |
ke |
ons. |
ons |
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Thu |
tors. |
do |
to |
tor. |
tor |
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Fri |
fre. |
vr |
pe |
fre. |
fre |
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Sat |
lør. |
za |
la |
lør. |
lör |
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Sun |
søn. |
zo |
su |
søn. |
sön |