Observation timeline from the SVOM/ECLAIRs burst detection to redshift determination by VLT/X-Shooter and the announcements in GCN Circulars. The colour-filled blocks show the observation sequence of the different SVOM instruments and follow-up facilities. The shaded blocks for the NOT, GTC, and VLT telescopes represent the local nighttime in the Canary Islands and at Cerro Paranal in Chile. The ’result’ dashed lines for Swift and Einstein Probe indicate the time at which the first X-ray source lists were issued from the XRT and FXT observations, respectively.