No, I think 311 (was it?) hopped around the most. It was all over the place anyway.
AS for the five years…it matches up reasonably well if we assume it’s 5 years + 28 frozen in the curse. Camelot never went to Storybrooke (same it seems with Arendelle–the Curse was a lot less far-reaching than it appeared at first), so from their perspective it’s been 5 straight years.
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Keeper of Belle's Gold magic, sand dollar, cloaks, purple FTL outfit, spell scroll, library key, copy of Romeo and Juliet, and cry-muffling pillow, Rumple's doll, overcoat, and strength, and The Timeline. My spreadsheet: https://drive.google.com/file/d/0B6r8CySCCWd9R0RUNm4xR3RhMEU/view?usp=sharing