First off, organize your baby's things the night before and know what to pack.
Next, factor in drive time to get to the daycare, finding parking, and I would factor in about 1/2 hour of your time, once you take your girl to day care.... ie: once you get there, take her out of the car, take her to the door, put her things in order, speak to the care provider if you have to, kiss her goodbye etc. That way you are not rushed and stressed, once you drop her off and get back into your car and then drive to work worried that you might be late.
I also keep an extra set of things in the car, just in case I forget something and I'm already on the road and have no time to turn back & go back home to get it.
Then factor in how long it takes you to drive to work door-to-door... the traffic, finding parking etc. and how long it will take you once you leave daycare dropping off, then get into your office door.
Transitioning to day care should be fine... babies adjust... and the care providers are used to that. If anything, your Daycare will certainly have a "schedule" for the children. If you have questions, ask before hand and call them, or write it down so you don't forget anything. Also, you can jot a few notes down to give to the care provider, just in case.
The next thing will be picking her up. Once you get home, then it's good to have a routine. Especially since Hubby is not usually home and has long irregular work hours.
Once you get home, you can give her a bath, feed her her bottle or nurse her if breastfeeding (feeding her on demand once you get home), have time with her, cook dinner with her near by with a few toys or in a swing to keep her occupied. Have downtime, and do something calming with her to then get her in the routine of bedtime. Try to make bedtime the same time every night. Then later, this will make things easier and create a regular habit.
The most important is to have a routine. A CONSISTENT routine, thereby making it easier on you once you both get home. Then, the baby will get used to this routine, and it will make things flow easier and keep you organized.
I know it can seem overwhelming... but I"ve found that having a routine is best and helps (me) in organizing my day with the kids. I am a SAHM... but my hubby works long hours as well, and goes to school afterward... so I am doing things solo most of the time. It can't be helped. I always try to arrive at my destination early at least 10-15 minutes early, then I don't have to rush around or rush my children when we have to be somewhere by a certain time. Once we get home, I have a routine and my kids know that... and they are used to it. And they nap once we get home. This then gives me "me" time to just relax or catch up on things. Keeping to a nap routine is also very important... it keeps the children even keeled and not overly tired, and at night they sleep better too.
No matter what, children will get used to whatever routine & habit there is. My kids know that at certain times, it's Mommy's time to cook dinner for example. Sure, my kids are older, but I've always done this since they were babies. So it's something they are used to by now.
Main thing is don't do things at the last minute... always try to prepare for the next day, the night before. Put out whatever you'll need in one place... for the next day.
There' so many tips... just some I thought of off hand. Hope it helps and all the best. You will be fine....
Take care,
Susan