I try with url https://dapi.binance.com/dapi/v1/klines?symbol=BTCUSD_PERP&interval=1m&startTime=1611619200000 but get most recent klines instead of requested start time:
For example, If I do the same for spot api with url https://api.binance.com/api/v3/klines?symbol=BTCUSDT&interval=1m&startTime=1611619200000, I get correct response:
It seems ‘startTime’ parameter doesn’t apply for COIN-M futures, only ‘endTime’ works properly