When you fly in country X, with an airplane operated under AOC of that country, you are limited by country X limitations. It does not matter what your FAA (or JAR) limitations are, as you obviously fly under a pilot licence validation of that country X, and you are subject to all the air law rules of country X.
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As an example, the yearly limitation of FAA airline flying is 1,000 hrs TT yearly, and for JAR it is 900 hrs TT. If you fly in a JAR country, you must abide by the JAR limitations if flying with a JAR licence (or validation) and AOC.
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If in Smurfistan, they permit their pilots to fly 1,200 hrs TT yearly, operating under Smurfistan licence validation and AOC, your limit is 1200 hrs TT yearly. But it should be mentioned that
if you return to FAA or JAR operations, you will not be able to fly legally
until your flying for the past 12 months is again below the FAA or the JAR limits. xxx
Happy contrails