deepseek-ai/deepseek-harness · error

invalid-time-zone

invalid-time-zone

Error message

clientTimeZone must be UTC or a valid IANA Area/Location name

What it means

Error "clientTimeZone must be UTC or a valid IANA Area/Location name" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/host/apiproxy/src/api-proxy.ts:2367

            await workspace.attachSession(childId)
          } catch (error: unknown) {
            return err(request, {
              code: 'workspace-attach-failed',
              message: `session "${childId}" was forked but could not attach to workspace "${workspace.id}": ${String(error)}`,
              details: { sessionId: childId, workspaceId: workspace.id },
            })
          }
        }
        return ok(request, { sessionId: childId })
      },

      async prompt(request) {
        const { sessionId, mode, content, clientTimeZone } = request.payload
        const canonicalTimeZone = clientTimeZone === undefined
          ? undefined
          : canonicalClientTimeZone(clientTimeZone)
        if (clientTimeZone !== undefined && canonicalTimeZone === undefined) {
          return err(request, {
            code: 'invalid-time-zone',
            message: 'clientTimeZone must be UTC or a valid IANA Area/Location name',
            details: { value: clientTimeZone },
          })
        }
        const resolved = await turnAgentFor<{ accepted: true }>(request, sessionId)
        if ('refused' in resolved) return resolved.refused
        const agent = resolved.agent
        // Request identity and optional browser zone ride the exact durable user message.
        const source: MessageSource = {
          kind: 'user',
          rpcId: request.rpcId,
          ...(canonicalTimeZone === undefined ? {} : { clientTimeZone: canonicalTimeZone }),
        }
        const hasImage = content.some(part => part.type === 'image')
        const admit = async (): Promise<RpcResponse<{ accepted: true }>> => {
          try {
            if (hasImage) {

View on GitHub (pinned to b150a551b8)

Solutions

1. Set clientTimeZone to UTC or a valid IANA Area/Location name (e.g. Europe/Berlin).

When it happens

Trigger: Thrown at packages/host/apiproxy/src/api-proxy.ts:2367 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of deepseek-ai/deepseek-harness@b150a551b8 (2026-08-24). Data as JSON: /api/errors/11c41a1fb87d3b75. Report an issue: GitHub.