I was hired on 10/20/12 as an AM clerk along with someone else that was hired on for the Local Sort... We both worked during peak season and after peak he got laid off and I kept working for 4 months because everyone assumed I had seniority since I started in the morning and he started in the evening. A Utility Driver position opened up, and we both signed up for it.. That is when we found out that I actually never had seniority since the date is what matters and not the time. So, we ended up flipping a coin for seniority and I lost the coin toss. So I ended up getting laid off and he got my job (Which I trained him for). In the Union handbook it says: "A new part-time employee shall attain Seniority when he/she has worked seventy (70) days within a six (6) consecutive month period". During the time I worked, I was only laid off for 2 weeks and I defiantly hit my 70 days. I do not think he has worked 70 days in this upcoming 6 month period. I was just wondering if there is anything I can do about this, or any input.. Thank You.