From professional translators, enterprises, web pages and freely available translation repositories.
15:00 is 3 o'clock (p.m.) (on tv: fifteenhundred). that's why you use a.m. (latin: ante meridiem) and p.m. (post meridiem) in situations where it is necessary to point out that you want to say in the morning or in the evening.
15.00 uhr ist also 3 o'clock (p.m.) – (im fernsehen: fifteenhundred). deswegen wählt man für vormittag a.m. (kommt aus dem lateinischen ante meridiem) und für nachmittag p.m. (post meridiem).
