Are all Economic Calendar same?

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Hello guys, I am very confused at the moment, I recently was trading and I found one thing very surprising and that was different Economic Calendars having difference with news, I mean like at present I work with FreshForex and often I find them having extra news which are not covered by others or when I see Economic Calendars from various sources like ForexFactory or any other place, there are slight difference, so can anyone please explain this to me?? Thanks…

Honestly I haven’t notice anything like that and I don’t think it makes much of a difference, we might see certain small news missing or changed, but overall all bigger news like NFP, FOMC or such are present in every Economic Calendar unless it’s not Economic Calendar. I have been using my broker OctaFX Economic Calendar, it’s very cool with covering all news and that too with complete accuracy, and so that’s why I don’t need to look anywhere else. Also, the best part is their daily market news and analysis service, it’s very easy and simply to follow yet highly effective which makes me love it all so much and always makes me comfortable and relaxed with doing everything.