As someone else said, stick with the toddler's routine and just let the baby fit in. And don't try to accomplish too much.
Mine are 17months apart, and are now just turned 3 years and 20mths, but our routine has always pretty much been:
7am-ish (often earlier): Up, milk, then breakfast
9/9.30 ish: Leave house for some kind of activity - library, walk, shops, playgroup, whatever.
11.30/noon: Home for lunch, then toddler nap
Afternoon: Around the house
5pm: Dinner (cooked with at least one child hanging from my leg screaming that they're about to die of starvation)
6.30pm: Bath and in bed for 7pm.
Getting out every morning was a big sanity saver for me - toddler was knackered out, fresh air & a change of scenery did everyone good and when she was a baby, child 2 just slept in the pram.
Getting the toddler sleeping reliably at lunchtime was key for me too - if they were sorted for a couple of hours I could give the baby some proper attention/have a little nap/make a start on dinner/etc. Even now, the rule is 'everyone has an hour in their bedroom at lunchtime, quietly playing with toys if they don't sleep'.
My husband was home in time for bathtime 3 out of 5 nights, and brilliant at it, which was a huge help.
Getting the toddler into bed at a sensible time was important for me (not that I had children who were great sleepers). Even though I had a baby cluster feeding, I still had something resembling 'an evening' (ie watching TV and nodding off).
Housework etc all just fitted in when it could. I don't really think you can have a routine as such with a baby, but it definitely works with a toddler and the baby eventually falls into over time.