for our three it was any where from 5pm and would last up to 9pm. They all grew out of it from 3-4months

not much helped settle them except being held and even that wasn't guarenteed. Like WM it was more about what we could do for ourselves tog et through it, eating in turns was one of them, DH would give them a bath so I would get some time out as I bf them all and they just wanted to feed on and off during the whitching hour. Walking them helped but walking or three hours wasn't an option. During the day dd3 has been unsettled and Ive found putting her in the carrier and walking around the shops helped settle her and stopped me going mental looking around the house thinking about what needed doing. Shame its winter as a walk around the block in a carrier might help, I get too tense doing senseless pacing in the house.

Good luck it improves, although all five of us are probably at our crankiest between 5-7pm at night still!