Here's about as specific data as I can get you: 50/50. As of this morning, my logbook has my Purple flying time with 732.2 hours, 365.9 is day and 366.3 is night.
This is the context:
I have been at FX for just over 2 years, so still quite new in the grand scheme, but at 80-ish% seniority at the company already due to the constant hiring in the last two years and the steady retirement flow. I'm on the A300, which is nearly all domestic flying, with a little international that goes very senior. I am at about 69% (NS-TFS!) seniority in the right seat, and for some perspective the Bus is a relatively senior airplane because of the domestic-only widebody flying: the top half of the A300 FO list is very heavy with senior FOs who have been parked there for years and are not moving. The bidpack for the A300 is about evenly split between day flying and night flying, with a lot of variations of it (out-and-backs, multi-day trips, hub-turn overnights etc) of both day and night flavor.
My seniority progression (in terms of schedule bidding) has been rapid, to say the least.
- After completing training, 3 months of reserve, most of which was A Reserve (night flying).
- Could hold secondary lines at month 4 out of training (secondaries are flying lines made up of scheduled trips and sometimes reserve days. Some months had nights, some months had days)
- Held commutable night flying lines at 12 months at the company (9 months out of training)
- Can hold commutable day flying lines at less than 2 years at the company.
The interesting thing is that night flying doesn't necessarily always go junior. Over the last two years, my day/night balance has pushed over into 60/40 days and 60/40 nights, depending on what I bid and what I can hold, but up to this point it always trends back toward the center of 50/50.
We shall see what it brings in the future now that I can consistently hold commutable day-flying lines, and that's what I intend to keep bidding.
For some further context, I had originally intended to bid over to the 777 as soon as I could, due to a bunch of factors that @JeremiahWeed has posted about in these threads before. However, the last two system bids at FX have seen a lot of A300 FOs leaving for greener pastures (either 777/MD FO, or 75 Captain, or even A300 Captain) and very few FOs coming *to* the Bus. This is mostly because the guys coming off the 757 have a much easier transition training difficulty & footprint going to the 76 than to the Bus. What this means is that my seniority continues to rapidly advance in the right seat of the Bus -- in fact, scheduled to go up 30+% in just this next 12-18 months.
So...I kicked back the plans to leave, and am instead going to enjoy a little taste of seniority (rather than "juniority") here this early on in my career at Purple.