B737-300
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 102; Flight Crew Total 15000; Flight Crew Type 2400
Human-Machine Interface; Fatigue; Distraction
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Provided Assistance; Flight Crew Landed As Precaution; Flight Crew Landed in Emergency Condition; Flight Crew Overcame Equipment Problem; Flight Crew Diverted
Human Factors; Aircraft
On climbout lost flight instruments ADI HSI both sides and navigation capability.  Was on standby instruments.  I took the aircraft from FO and requested priority handling. With help from ATC.  Landed VFR safely at ZZZ.  Found the IRUs not properly aligned.With constant interruptions preparing for the flight by flight attendants; fuel slips; security forms; I failed to properly align the IRUs.  I usual devote my attention to this process and can only imagine that I got interrupted.  I was also tired.  Everything seemed normal on taxi out.  I was able to update the position at the end of the runway.  I had a First Officer brand new to the airplane.  Just finished IOE.  Ultimately it was my fault I take full responsibility.  I feel terrible about it.  Pilot error on my part.
B737-300 Captain reported they lost flight instruments on both sides and navigation capability during climbout resulting in a diversion.  Captain stated the IRUs were not properly aligned and cited multiple distractions and fatigue as contributing factors.