Budapest is 6 hours behind Shanghai
Best overlap: 2:00 PM to 6:00 PM in Shanghai is 8:00 AM to 12:00 PM in Budapest.
Aim for 2:00 PM to 6:00 PM Shanghai time — that's 8:00 AM to 12:00 PM over in Budapest. Budapest is 6 hours behind Shanghai, which gives you a solid 4-hour window. Book earlier in it and neither side is rushing. These times hold for most of the year, but Budapest's daylight saving (which Shanghai doesn't use) shifts them by an hour twice annually.