Can I work on Sunday and rest on Saturday?

did I commit a grave sin if I work on Sunday and have my rest on saturday?

The following links should help answer your question about working on Sunday. If you have any further questions, please contact Catholic Answers directly.
Recommended Reading:**

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Is my Sunday job considered servile work?
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May a Catholic nurse work on Sundays?
Can we volunteer to work on Easter if we need the money?

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