2010-06-18;
P7D;
55;
2010-06-18 + P7D;
P7D + 2010-06-18;
2010-06-18 - P7D;
2010-06-18 - 2010-06-11;
P50D + P77D;
P50D - P13D;
P7D * 7;
7 * P7D;
2010-06-18 + P7D * 3;
2010-06-18 + 3 * P7D;
3 * P7D + 2010-06-18;
P7D * 3 + 2010-06-18;
2010-06-18 - P7D * 3;
2010-06-18 - 3 * P7D;
3 * P7D - P5D;
3 * (P7D - P5D);
3 * P7D - P5D - P8D;
3 * P7D - (P5D - P8D);
3 * (P7D - P5D - P8D);
2010-06-18 + (2000-03-05 - 2000-02-25);
2010-06-18 + 2000-03-05 - 2000-02-25;
