Number of weeks in 1998 year is 53 weeks
Weeks are according Brazil calendar rules, Sunday first day and weeks are Sunday to Saturday

Week # From Date To Date Weeks from Now
Week 1 December 28, 1997 January 3, 1998 passed 1191 weeks ago
Week 2 January 4, 1998 January 10, 1998 passed 1190 weeks ago
Week 3 January 11, 1998 January 17, 1998 passed 1189 weeks ago
Week 4 January 18, 1998 January 24, 1998 passed 1188 weeks ago
Week 5 January 25, 1998 January 31, 1998 passed 1187 weeks ago
Week 6 February 1, 1998 February 7, 1998 passed 1186 weeks ago
Week 7 February 8, 1998 February 14, 1998 passed 1185 weeks ago
Week 8 February 15, 1998 February 21, 1998 passed 1184 weeks ago
Week 9 February 22, 1998 February 28, 1998 passed 1183 weeks ago
Week 10 March 1, 1998 March 7, 1998 passed 1182 weeks ago
Week 11 March 8, 1998 March 14, 1998 passed 1181 weeks ago
Week 12 March 15, 1998 March 21, 1998 passed 1180 weeks ago
Week 13 March 22, 1998 March 28, 1998 passed 1179 weeks ago
Week 14 March 29, 1998 April 4, 1998 passed 1178 weeks ago
Week 15 April 5, 1998 April 11, 1998 passed 1177 weeks ago
Week 16 April 12, 1998 April 18, 1998 passed 1176 weeks ago
Week 17 April 19, 1998 April 25, 1998 passed 1175 weeks ago
Week 18 April 26, 1998 May 2, 1998 passed 1174 weeks ago
Week 19 May 3, 1998 May 9, 1998 passed 1173 weeks ago
Week 20 May 10, 1998 May 16, 1998 passed 1172 weeks ago
Week 21 May 17, 1998 May 23, 1998 passed 1171 weeks ago
Week 22 May 24, 1998 May 30, 1998 passed 1170 weeks ago
Week 23 May 31, 1998 June 6, 1998 passed 1169 weeks ago
Week 24 June 7, 1998 June 13, 1998 passed 1168 weeks ago
Week 25 June 14, 1998 June 20, 1998 passed 1167 weeks ago
Week 26 June 21, 1998 June 27, 1998 passed 1166 weeks ago
Week 27 June 28, 1998 July 4, 1998 passed 1165 weeks ago
Week 28 July 5, 1998 July 11, 1998 passed 1164 weeks ago
Week 29 July 12, 1998 July 18, 1998 passed 1163 weeks ago
Week 30 July 19, 1998 July 25, 1998 passed 1162 weeks ago
Week 31 July 26, 1998 August 1, 1998 passed 1161 weeks ago
Week 32 August 2, 1998 August 8, 1998 passed 1160 weeks ago
Week 33 August 9, 1998 August 15, 1998 passed 1159 weeks ago
Week 34 August 16, 1998 August 22, 1998 passed 1158 weeks ago
Week 35 August 23, 1998 August 29, 1998 passed 1157 weeks ago
Week 36 August 30, 1998 September 5, 1998 passed 1156 weeks ago
Week 37 September 6, 1998 September 12, 1998 passed 1155 weeks ago
Week 38 September 13, 1998 September 19, 1998 passed 1154 weeks ago
Week 39 September 20, 1998 September 26, 1998 passed 1153 weeks ago
Week 40 September 27, 1998 October 3, 1998 passed 1152 weeks ago
Week 41 October 4, 1998 October 10, 1998 passed 1151 weeks ago
Week 42 October 11, 1998 October 17, 1998 passed 1150 weeks ago
Week 43 October 18, 1998 October 24, 1998 passed 1149 weeks ago
Week 44 October 25, 1998 October 31, 1998 passed 1148 weeks ago
Week 45 November 1, 1998 November 7, 1998 passed 1147 weeks ago
Week 46 November 8, 1998 November 14, 1998 passed 1146 weeks ago
Week 47 November 15, 1998 November 21, 1998 passed 1145 weeks ago
Week 48 November 22, 1998 November 28, 1998 passed 1144 weeks ago
Week 49 November 29, 1998 December 5, 1998 passed 1143 weeks ago
Week 50 December 6, 1998 December 12, 1998 passed 1142 weeks ago
Week 51 December 13, 1998 December 19, 1998 passed 1141 weeks ago
Week 52 December 20, 1998 December 26, 1998 passed 1140 weeks ago
Week 53 December 27, 1998 January 2, 1999 passed 1139 weeks ago