Ilford suggested the following starting times for ID-11 or D-76
at 68 degrees F.  Exposed at ISO 125.  Intermittent agitation of 10 seconds
in every minutes.

Not Diluted        6 1/2 minutes
1+1                   9 minutes
1+3                   15 minutes

Other developers:

HC-110
1+7    ISO 125    5 1/2 minutes

Perceptol or Microdol X:
none    ISO 64    10 minutes
1 + 1    ISO 100    11 minutes
1 + 3    ISO 100    16 minutes

Ilford's note:
"These developing times may be increased up to 50% for additional contrast
when using diffusion or cold light type enlargers."

Hope this gets you going.