18 o' clock pm

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  • lingobingo

    Senior Member
    English - England
    Nope. They’re both totally wrong. Even pm (or am) with o’clock is wrong.

    6 o’clock [in the evening] :tick:/ 6 pm :tick: / 18.00 :tick:

    Uncle Jack

    Senior Member
    British English
    "O'clock" is only used with 12-hour notation.

    If you need to pronounce 18:00, then either convert it to 12-hour format ("six pee em" or "six o'clock") or else use "eighteen hundred hours".
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