Gregorian Calendar

Months

January: urtarrila (urt., U)

February: Otsaila (ots., O)

March: Martxoa (mar., M)

April: Apirila (api., A)

May: Maiatza (mai., M)

June: Ekaina (eka., E)

July: Uztaila (uzt., U)

August: Abuztua (abu., A)

September: Iraila (ira., I)

October: Urria (urr., U)

November: Azaroa (aza., A)

December: Abendua (abe., A)

Days

Sunday: Igandea (ig., I)

Monday: Astelehena (al., A)

Tuesday: Asteartea (ar., A)

Wednesday: Asteazkena (az., A)

Thursday: Osteguna (og., O)

Friday: Ostirala (or., O)

Saturday: Larunbata (lr., L)

For further information on calendar data, see  Unicode Technical Report #35.