Usual Sunday

For many years I have talked to my sister on the phone on a Sunday morning. We catch up with each other's news and compare notes on our WIs. Sometimes she needs cheering up and sometimes I'm the one that needs a boost. That is what sisters are for.
Normous plays bridge at the golf club on a Sunday morning while I cook his Sunday lunch. Today I roast a small chicken. The chill wind has dropped at last and it was warm enough for us to eat outside.
This white flower on a shrub at the corner of our patio has come out in the last few days. I always thought it was called syringa, but I have just Googled, and syringa is lilac. Can anyone help?