LOS ANGELES (thefutoncritic.com) -- NBC is giving "Grimm" an earlier bedtime.

Network sources have confirmed to the site the series will go on a month-long hiatus following its February 13 episode before returning for the back half of its 22-episode season on Friday, March 20 at the earlier time of 8:00/7:00c.

Filling the void on those Fridays will be an encore of the "Saturday Night Live 40th Anniversary Special" on February 20 while the new season of "The Night Shift" will get weekly rebroadcasts in the Friday, 8:00/7:00c hour for its first three weeks back (February 27 through March 13).

The network's mainstay "Dateline NBC" will also expand to two hours beginning February 27.

Here's a quick recap:

Fridays (January 23-February 13)
8:00/7:00c - "Constantine"
9:00/8:00c - "Grimm"
10:00/9:00c - "Dateline NBC"

Friday, February 20
8:00/7:00c - "Saturday Night Live 40th Anniversary Special" (Encore)

Fridays (February 27-March 13)
8:00/7:00c - "The Night Shift" (Encores)
9:00/8:00c - "Dateline NBC" (New Time - Two Hours)

Fridays (March 20-May 15)
8:00/7:00c - "Grimm" (New Time)
9:00/8:00c - "Dateline NBC" (Two Hours)