daytime    umurāngo, umutāga
En-En dictionary 
darkness    umwījima, umwīza
(great) umuzimagiza, umuzitanya
(in daytime) ubwīrakabiri
En-En dictionary 
watchman    umurinzi, umuteramyi, umunyezamo (Sw.), umuzamu (Sw.)
(esp. in daytime) umusānzi
(night) umurāririzi
En-En dictionary 
kwūbikiza (-ūbikije)   v    to become dark in daytime (from fog, etc.)
umusānzi (aba-)     1  class 1
singular: umu-
plural: aba-
  
watchman, guard (esp. in daytime)
guard    umurīzi, umurīnzi, umunyezamo, umuzamu (Sw.)
(esp. daytime) umusānzi
(one who stands on ~) umushibamyi
(to ~) kuzigama, kurinda
(to be on ~) kuba māso, kugaba
(oneself) kwihahiriza
(watch over carefully) kugendeza
En-En dictionary 
ubwīrakabiri     8  class 8
singular: ubu-
  
(no pl.) eclipse, darkness in daytime
umurāngo (imi-)     2  class 2
singular: umu-
plural: imi-
  
daytime
umutāga (imi-)     2  class 2
singular: umu-
plural: imi-
  
daytime, esp. near moon (from German: Tag)
dark    (darkness) umwījima, umwīza
(after dark) bwateranye
(to be) kwīrabura, gucūra umwiza
(to become) kwīra
(to become in daytime, fog, etc.) kwūbikiza
(to come from ~ into light) kwāndagara
En-En dictionary 
 daytime found in: Kirundi II (Grammar)
chapter 81   Times of Day