# Upgrade Question:Third Mate to Second Mate
**URL:** https://forum.gcaptain.com/t/upgrade-question-third-mate-to-second-mate/3848
**Category:** Professional Mariner Forum
**Created:** [April 13, 2010, 6:12pm UTC](https://forum.gcaptain.com/t/upgrade-question-third-mate-to-second-mate/3848 "2010-04-13T18:12:47Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@bdmate](https://forum.gcaptain.com/u/bdmate)
#### Post date: [April 13, 2010, 6:12pm UTC](https://forum.gcaptain.com/t/upgrade-question-third-mate-to-second-mate/3848/1 "2010-04-13T18:12:47Z")
If I were to work on a vessel of 2200 GRT as a mate will i be able to use all 270 sea days (12 hour days) or 360 sea days (8 hour days) to upgrade to a Second Mate Unlimited?
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### Author:  [@10talents](https://forum.gcaptain.com/u/10talents)
#### Post date: [April 13, 2010, 7:46pm UTC](https://forum.gcaptain.com/t/upgrade-question-third-mate-to-second-mate/3848/2 "2010-04-13T19:46:55Z")
If the time was while holding a third mate license then why wouldn’t it count?
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### Author:  [@seadawg](https://forum.gcaptain.com/u/seadawg)
#### Post date: [April 13, 2010, 8:22pm UTC](https://forum.gcaptain.com/t/upgrade-question-third-mate-to-second-mate/3848/3 "2010-04-13T20:22:07Z")
here is the checklist:
[http://www.uscg.mil/nmc/checklists/MCP-FM-NMC5-17%202nd%20Mate%20AGT.pdf?list1=checklists%2FMCP-FM-NMC5-17+2nd+Mate+AGT.pdf&B1=GO!](http://www.uscg.mil/nmc/checklists/MCP-FM-NMC5-17%202nd%20Mate%20AGT.pdf?list1=checklists%2FMCP-FM-NMC5-17+2nd+Mate+AGT.pdf&B1=GO%21)
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### Author:  [@JBPA](https://forum.gcaptain.com/u/JBPA)
#### Post date: [April 13, 2010, 10:07pm UTC](https://forum.gcaptain.com/t/upgrade-question-third-mate-to-second-mate/3848/4 "2010-04-13T22:07:55Z")
If you are worried about it being an OSV, don’t. You should be able to upgrade no problem. Have fun.