noon    isaha sita, sasita, amashōka, ku mamina ngohe
En-En dictionary 
ku mamina ngohe     phr    noon (when one has to tip head back to see the sun)
time of day   amango
(dawn) umutwēnzi
(early morning) agatōndo
(morning) igitōndo
(between 9 and 10 am) ku musase
(near noon) umutāga, ku mamina ngohe
(about 1 pm, when cows leave drinking place) amahodoka
(about 3 pm) amasubirayo y'inyana
(toward sundown) umuhīngamo
(after dark) bwateranya
(sun low, but visible) ikirēngazūba
(early evening) akagorōba
(late afternoon or evening) umugorōba
En-En dictionary 
akagorōba     7  class 7
singular: aka-,aga-
(no pl.) early evening, late afternoon
igicamunsi (ibi-  4  class 4
singular: iki-,ic-
plural: ibi-,ivy-
mwīriwe    n    1. good afternoon, good evening, 2. hello (in afternoon/evening, greeting used when meeting for second time same day)
sāsita   3  class 3
singular: i-,in-
noon, lunch (time) (from Sw. isaha sita)
umugorōba (imi-)     2  class 2
singular: umu-
plural: imi-
evening, late afternoon
umuhīngamo (imi-)     2  class 2
singular: umu-
plural: imi-
afternoon, toward sundown
afternoon    inyuma ya sasita, ku muhīngamo, umuhīngamo
(late, early evening) umugorōba, akagorōba
(good afternoon!) mwīriwe
En-En dictionary 
day    umusi, umunsi
(~ before yesterday, ~ after tomorrow) hirya y'ejo
(it is ~) harakeye
(on a certain ~) umusi ur'izina, umunsi ur'izina
(the next ~) bukeye
(today) uyumusi, uyumunsi
(time of day) :
(9 to 10 a.m.) kumusase
(noon) umutāga, ku mamima ngohe
(middle of day) amashōka
(about 3 p.m.) amasubirayo y'inyana
(after dark) bwateranye
(to be ~) guca
(to spend all ~) kwīrirwa
(to start the ~) kuramuka
En-En dictionary 
evening    (later afternoon) umugorōba
(early) akagorōba
(when sun is very low but still visible) ikirēngazūba
(to be or become ~) kugorōba
En-En dictionary 
hello    (morning) bwakeye
(afternoon) mwīriwe
(informal) yambu, bite, amaho, gute, gute none, vyifashe gute
En-En dictionary 
 noon found in: Kirundi I (Study lessons)
lesson 62   Months, Days of the Week, Telling Time