Axis tick label unmatch the time series data

Here is the time series data:

{“status”:“success”,“data”:{“resultType”:“matrix”,“result”:[{“metric”:{“db”:“0”,“role”:“master”},“values”:[[1503020705,“153701752587.66666”],[1503020710,“153701752587.66666”],[1503020715,“148994005340.66666”],[1503020720,“152426441003.26666”],[1503020725,“155368419135.86667”],[1503020730,“155387232004.73334”],[1503020735,“151867635892.33334”],[1503020740,“155823967606.2”],[1503020745,“155823967606.2”],[1503020750,“156744031117.46667”],[1503020755,“153838951051.8”],[1503020760,“153319131030.66666”],[1503020765,“154219233821.26666”],[1503020770,“152917998880.06668”],[1503020775,“152917998880.06668”],[1503020780,“153641749343.33334”],[1503020785,“153633005448.6”],[1503020790,“153717046365.8”],[1503020795,“153717046365.8”],[1503020800,“154810180599.93332”],[1503020805,“154810180599.93332”],[1503020810,“152279430283.6”],[1503020815,“153511096543”],[1503020820,“152343315492.8”],[1503020825,“152430347742.33334”],[1503020830,“153883715212”],[1503020835,“153239449917.93332”],[1503020840,“153150825259.4”],[1503020845,“153150825259.4”],[1503020850,“154770868430.13333”],[1503020855,“152258135980.86667”],[1503020860,“157800271745.06668”],[1503020865,“157800271745.06668”],[1503020870,“153665141514.8”],[1503020875,“154820355487.33334”],[1503020880,“151749083054.06668”],[1503020885,“151749083054.06668”],[1503020890,“154637570401.93332”],[1503020895,“151968694094.6”],[1503020900,“152410864300.66666”],[1503020905,“152410864300.66666”],[1503020910,“153909398769.13333”],[1503020915,“152159137623.33334”],[1503020920,“156425228731.2”],[1503020925,“152000021370.53333”],[1503020930,“151962656563.46667”],[1503020935,“151962656563.46667”],[1503020940,“152746522344.06668”],[1503020945,“155216306791.4”],[1503020950,“155216306791.4”],[1503020955,“154218819528.73334”],[1503020960,“152693043847.26666”],[1503020965,“152693043847.26666”],[1503020970,“153435973264.26666”],[1503020975,“154714309625.4”],[1503020980,“153762170689.93332”],[1503020985,“151722558708.66666”],[1503020990,“153618590437.13333”],[1503020995,“157403156596.2”],[1503021000,“157403156596.2”],[1503021005,“153347189649.13333”]]},{“metric”:{“db”:“0”,“role”:“slave”},“values”:[[1503020705,“0”],[1503020710,“0”],[1503020715,“0”],[1503020720,“0”],[1503020725,“0”],[1503020730,“0”],[1503020735,“0”],[1503020740,“0”],[1503020745,“0”],[1503020750,“0”],[1503020755,“0”],[1503020760,“0”],[1503020765,“0”],[1503020770,“0”],[1503020775,“0”],[1503020780,“0”],[1503020785,“0”],[1503020790,“0”],[1503020795,“0”],[1503020800,“0”],[1503020805,“0”],[1503020810,“0”],[1503020815,“0”],[1503020820,“0”],[1503020825,“0”],[1503020830,“0”],[1503020835,“0”],[1503020840,“0”],[1503020845,“0”],[1503020850,“0”],[1503020855,“0”],[1503020860,“0”],[1503020865,“0”],[1503020870,“0”],[1503020875,“0”],[1503020880,“0”],[1503020885,“0”],[1503020890,“0”],[1503020895,“0”],[1503020900,“0”],[1503020905,“0”],[1503020910,“0”],[1503020915,“0”],[1503020920,“0”],[1503020925,“0”],[1503020930,“0”],[1503020935,“0”],[1503020940,“0”],[1503020945,“0”],[1503020950,“0”],[1503020955,“0”],[1503020960,“0”],[1503020965,“0”],[1503020970,“0”],[1503020975,“0”],[1503020980,“0”],[1503020985,“0”],[1503020990,“0”],[1503020995,“0”],[1503021000,“0”],[1503021005,“0”]]}]}}

It looks like all your values are strings. This can cause strange side effects.