Java (JDK 10), 175 bytes

s->{int c=0;for(var t=java.time.LocalDate.now();!t.parse(s.replaceAll("(.*)\\.(.*)\\.(.*)","3ドル-2ドル-1ドル")).equals(t);t=t.plusDays(1))c-=t.getDayOfWeek().getValue()/6-1;return c;}

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Java (JDK 10), 171 bytes

s->{int c=0;for(var t=java.time.LocalDate.now();!t.parse(s.replaceAll("(..).(..).(.*)","3ドル-2ドル-1ドル")).equals(t);t=t.plusDays(1))c-=t.getDayOfWeek().getValue()/6-1;return c;}

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Credits

• -4 bytes thanks to Kevin Cruijssen

Java (JDK 10), 175 bytes

s->{int c=0;for(var t=java.time.LocalDate.now();!t.parse(s.replaceAll("(.*)\\.(.*)\\.(.*)","3ドル-2ドル-1ドル")).equals(t);t=t.plusDays(1))c-=t.getDayOfWeek().getValue()/6-1;return c;}

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Java (JDK 10), 175 bytes

s->{int c=0;for(var t=java.time.LocalDate.now();!t.parse(s.replaceAll("(.*)\\.(.*)\\.(.*)","3ドル-2ドル-1ドル")).equals(t);t=t.plusDays(1))c-=t.getDayOfWeek().getValue()/6-1;return c;}

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