Don't let the usage of "full time" confuse you with an actual full time position. The only full time, hourly positions are TLs and equivalent. For tax and benefit purposes all TMs are considered part time. You may be given 32+ hours on a regular basis, which will make you eligible for medical coverage, however if shit goes south, they can put you down to 4 hours a week.
This was the harsh reality my team got when Target started cutting down hours for all work centers. I had to explain to almost every TM on my team that they were not full time, therefore they are not guaranteed 38.5 hours. If I was given 2000 hours for the week I couldn't make that 3000 to give everyone claiming to be full time 38.5 hours. I had plenty of TMs go from 30+ hours to 18 hours or less on a consistent basis. This is Target's way of eliminating health care coverage.
I'm assuming the ETLs were asking if the new batch of TMs were seasonal (meaning they can fire without question before/after Christmas) or regular hire (90 period - documentation before termination - staying on after the holidays). We hired seasonal in waves, terming waves of TMs before Christmas, right after Christmas, and right after New Years Day. For my team, we kept roughly 2 TMs out of 25 hired. This time of year stores should be starting the seasonal hire process and continue to do so until December.
Keep your head up about hours. This time of year (normally) Target gives stores more hours than they can use. You shouldn't have too many problems getting full time hours. The hard part will be getting full time hours after Christmas. January - March is especially depressing for hours.
As for the time of month - if you are nervous about accidents then wear a khaki long skirt, double up on hygiene products, or let it go - at least the color matches dress code expectations.