[DAEF-533] fix bignumber / date issues
[DAEF-533] fix bignumber / date issues

input-output-hk/daedalus,input-output-hk/daedalus,input-output-hk/daedalus,input-output-hk/daedalus,input-output-hk/daedalus,input-output-hk/daedalus